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Friday, June 19, 2015

40 easy ways to make money quickly

On this page you’ll find all the best ways to make money in your spare time whilst at university based on our own experience. We’ll keep adding new ways to this page so go ahead and bookmark it. And please do share your own ideas in the comments!
Top ways to make money online and offline
  1. No-risk matched betting

    free bets from matched bettingHands down the quickest way to make a lot of money (well, without breaking the law). Lots of students have genuinely made £100s from this technique. It’s completely legal, risk free, tax free, and anyone can do it.
    It works by taking advantage of free bets regularly offered by betting sites through ‘matching’ them at a betting exchange. Matched betting eliminates the risk (you are betting both for and against a certain outcome).
    This leaves you being able to squeeze out the free bet, which can be as much as £200! Multiply this by how many betting sites there are and you can quite easily come away with a profit of a few hundred pounds.
    Owen walks you through how to make your first £15 profit (using a real life example) in this gem of a guide to matched betting. If you know of any better way to make £30/hr sitting at home, please let us know!
  2. Online surveys

    cat typingCredit: Julio Marquez – Flickr.com
    An increasingly popular way for students to make money is to fill out online surveys in their spare time. Research companies are always recruiting new members to answer surveys and test new products.
    For a few minutes of form filling, you can make a couple of quid which is paid as cash or in rewards. You can make up to £3 for some surveys!
    Also sign up for Swagbucks.com which rewards you for surveys as well as simply surfing the web, watching videos and playing games.
    Update: See our new full guide to the best paid online surveys!
  3. Paid for searching the web

    Interested in earning cash for doing what you already do online? This has to be one of the easiest methods of making money online without really any effort or change in your behavior.
    This innovative idea by Qmee.com rewards you for searching in Google, Bing or Yahoo. You just install a simple add-on to your browser and when you conduct a search there may be a few sponsored results alongside your normal search.
    qmee paid searchEach Qmee result has a cash reward attached – if you are interested in it simply click on it and collect your reward.
    The best thing is there is no minimum to cashout – our first one was just 72p wired to our Paypal account. You also have the option to donate it to charity.
    Sign up now for free and start earning from your own searches! Click here to start.
  4. Social Investment Networks

    The historically hard-to-break world of investing in stock markets and currencies has been cracked wide open. Today there is no need to be a fat cat or fund the yachts of Wolf of Wall Street style stock brokers. You can do it all yourself with the help of free online market trading platforms.
    Having spent many hours researching this new opportunity, I’ve been experimenting with eToro.com which has over 4 million users worldwide. It was recently featured in the BBC 2 documentary “Traders: Millions by the Minute” and the Financial Times.
    etoro tradingOne of the best things on eToro is the CopyTrader feature. This lets you literally see, follow and copy the investments of other top performing traders.
    Follow George’s complete guide to trading on eToro to learn more. I think $200 is a good amount to get the most out of the learning curve by trying out a few different markets. If nothing else you’ll learn a great deal about various investments and industries.
    Warning: trading can be volatile and you can lose money, so don’t throw your life savings into it!
  5. Review websites & apps for cash

    usertesting.comWell it seems like you’re pretty nifty with a web browser, so perhaps it’s time to turn pro and browse websites as a paid and fun job!
    Introducing UserTesting.com – a new platform that pays everyday people to review all kinds of websites. Each review takes around 20 minutes and bags you $10 (£6.50) via Paypal.
    Simply sign up here, complete a test review and look forward to receiving websites in your inbox.
  6. ‘Get Paid To’ sites

    swagbucksSimilar to making money from online surveys, GPT sites reward you in cash and vouchers for completing various offers or activities online.
    The most popular sites today are Toluna,Swagbucks.comInboxPounds andPaidOffers.
    Exciting update! We’ll soon be launching our own GPT service for our readers. Invites will be limited and UK only, please join our mailing list if you’re interested in hearing once it’s live:
  7. The ‘Disney Vault’ secret

    To keep demand high across generations, Disney Studios carefully restrict the supply of some home release classics. They are locked away in the ‘vault’ for 8-10 years before being released for a short unspecified time.
    Buy them in this window at normal retail price and you can turn a nice profit when they go off sale for another decade or so.
    disney vaultFor example, in 2011 you could buy Beauty and the Beast on Blu-ray 3D for just £24.99. In just a couple of years it’s now on Amazon for a staggering £74.99!
    Importantly, not all Disney releases are subject to the vault and only the true most popular classics will maintain such demand.
    Right now there are just 2 titles out of the vault which I would recommend snapping up. They are Bambi Diamond Edition Blu-ray for just £13.50 and Cinderella Diamond Edition Blu-ray for £14.
  8. Start your own website

    mark zuckerberg facebookIf you’ve ever seen the film The Social Network then you’ve most likely had your brain spinning as to what website you can start-up to make you billions.
    And of course there are lots of stories out there about successful students who have started a site while at university, or even bought a domain name and later sold it for 1000s.
    In fact, Save the Student is one such example of a website started at university by Owen Burek in his first year, which has since grown into a full-time and successful enterprise.
    Read Owen’s 4-step guide to setting up a website if you’re interested in finding out more. It’s really not that difficult to get started and there are plenty of opportunities to make money online.
  9. Sell your notes

    If you don’t mind sharing your notes with other students it’s a great way to generate a little extra cash. There are sites out there that you can upload your notes to, along with your price, and then when another student downloads them you get paid.
    Sites like Notesale are free for you to list your notes but tend to take a cut of your profit in order to handle the marketing etc so that you don’t have to go out there and promote your notes yourself.
    You will most likely have to upload PDFs but it’s worth it for the return and you can submit handwritten notes but you’re likely to make more money if they’re typed up.
  10. Write and publish a Kindle eBook

    If students are good at anything, it’s researching and writing. With theAmazon Kindle storeanyone can publish an eBook and make money.
    And the Kindle app is now available on almost any device (laptops, iPads, smartphones and yes, Kindles) so your global market is huge!
    List your book for £1.49 – £6.99 and you earn 70% of the sale. Considering Amazon is the ultimate selling machine (and remember people are looking to spend), that is a fantastic deal.
    kindle ebooksThe key to success with eBooks is to create value, and write non-fiction. Simply bundling information you have researched and complied on a common problem (eg. ‘secrets’ to finding a job) and then presenting it in an easy to digest format (an eBook) justifies someone spending a few quid on it.
    Another big tip is to have a great cover designed so it stands out, and once your book is live on the Kindle store (approval takes less than 48 hours) it’s really important to get some reviews so it shows up higher in results. Encourage readers to leave an honest review at the end of your book.
    The best thing about this lucrative idea is that once you’ve invested the time (say 20 hours), you’ll earn a passive income for years to come! For a step-by-step guide to publishing and earning with eBooks, see “How to write a nonfiction eBook in 21 days“.
  11. Affiliate marketing

    If you’ve got a good presence on social media or perhaps you even have a blog or website, you can start bringing in money immediately by promoting all sorts of companies, products, services and offers online.
    Affiliate Window logoSign up to an affiliate network such as Affiliate Window, check their offers blog or browse the merchant listings to find something you think your friends would be interested in, grab your affiliate link and share it. If someone buys (can be within up to 90 days) using your link you’ll make a nice commission.
    To take it a step further, set up a website (read our guide) or a topical Facebook page and invite all your friends to join it and post your affiliate offers on there.
  12. Mobile phone recycling

    mobile recycleCredit: CannedTuna – Flickr.com
    See how much you can get for your old mobile phone using our in-housemobile phone price comparison tool! Maybe ask your parents if they have any lying around too.
    You can get some good money and help the environment by recycling mobile phones with certain companies listed on the comparison tool. Most phones are shipped off to Asia to be dismantled and we know of at least one student who received a £120 cheque in return.
  13. Competitions

    Entering competitions of course comes with no guarantees, but there is a growing community of so-called ‘compers’ in the UK consistently making up to £50,000 a year through all sorts of competitions.
    Types of competitions available to enter range from simple registration forms and Facebook page liking to answering questions correctly over the phone to being a TV game show contestant. Imagine you made it ontoDeal or No Deal instead of just watching it!
    Start by entering our very own monthly student competition (Like our Facebook page to see when our next one is)!
    competitionsThen head to our active competitions page to enter other free competitions that we have found. Just note that some of these sites may send you spam so use an alias email address and opt-out of as many of the offers as possible.
    For loads more tips on achieving success and making money from competitions, read our guide to entering competitions.
  14. Claim tax back

    Many students work part-time or during the summer months, and others will be on placements or paid internships. More often than not, if you are a student working during the year, you will be overpaying income tax.
    Why? Simply because few students reach the personal tax-free income allowance each year but are put on an emergency basic tax-code by their employers meaning tax is being paid when it shouldn’t be.
    Click to use the Tax refund calculatorUse our student tax-back service to help you reclaim any tax you should not have paid. Just enter your details in the calculator here to work out what you may be owed. Otherwise for more information read our guide on claiming tax back here.
  15. Get cashback when shopping

    Our Quidco Cashback
    I earned this much in 2 years
    This is not only a way to make money but also to save money as a student. If you look at it in a different way then you are making money with every purchase you would have made anyway, whether it be 10% or 0.5% cashback.
    There are a number of cashback sites out there which pay you the commission they otherwise would have earned.
    We recommend signing up with both Top Cashback and Quidco.comwhich are free and offer the best selection of retailers and exclusives.
  16. A part-time job

    bar jobsA part-time job is the obvious first choice, opted for by most students looking to supplement their student loan. It provides a pretty steady flow of income and can enable you to gain valuable work experience.
    However, depending on where you live, jobs are not always easy to find. Check local classifieds, our student job searchstudent job websites and your university careers service for vacancies.
    It’s also worth signing up with the Graduate Recruitment Bureau, a free service which will match you with both part-time jobs or graduate opportunities.
    Read our guide to finding a part-time job whilst studying for more tips.
  17. Gigs on Fiverr

    Fiverr pranksFiverr is now the world’s largest marketplace for people to make money selling small services (known as ‘gigs’).
    What you offer could be absolutely anything, from writing and translating,social media postingplaying pranksand teaching to creating music, voiceovers and short video clips for people all around the world!
    The default price is $5 (hence Fiverr..), but you can attach extra services to gigs for more money. Whilst it might not seem like much, it can quickly add up and there are plenty of examples of people making a really good living from the site. The key is to get a system in place which minimises the time spent on each gig.
    But there is another way to profit even more from Fiverr for potentially far less work. How? By simply reselling gigs elsewhere. For example, find a decent logo designer then reply to jobs on Elance or even local classifieds. A $5 spend can easily become $50+, and it’s repeatable!
    If you’re not interested in selling at all there’s SO much good stuff you can get done for yourself. Have a browse and get inspired!
  18. Review music for money

    If you love music, make it your business by reviewing unsigned bands and artists online for cash with Slicethepie.
    It can take a while to build up your reputation but some users of the site have said that they earn £40 a month. This may not sound like much, but if it’s something you enjoy then it shouldn’t be hard work and is another thing for your CV. Money you earn will be in $US but anyone can sign up and review.
    slicethepieTo get started, head over to Slicethepie now or read our quick guide for more info.
  19. Sell second-hand course books

    One great way to make money is to buy other students’ text books at the end of the year, and then sell them just after freshers’ week – when the new intake of students know that they need them!
    You can either advertise on campus or list them online very easily onAmazon.co.uk Books Trade-In (just bear in mind they take a commission on books sold).
    For more tips on selling items online click here.
  20. Become an Amazon ‘Mechanical Turk’

    Don’t ask us what this means, all we know is that it’s an easy way to make fast cash from your sofa. The concept is based on ‘internet crowd-sourcing’ where businesses advertise specific, scalable tasks they need completing quickly.
    mechanical turkThere are a variety of tasks (known as HITS), but most commonly they involve mindless data entry or form filling. You are rewarded in cash (though $USD) for the work you do, and you can choose for what and when you work. Give it a go [Update: Currently US signups only, tryClickWorker].
  21. Buy and sell domain names

    domain-for-saleA domain name is just a website address (eg. ‘savethestudent.org’ or ‘mysite.co.uk’) and there are lots of extensions (.com, .net, .co.uk etc).
    They cost as little as £1.99 to register with 123-reg.co.uk or GoDaddy.comyet premium domain names can fetch £1,000s if not millions when sold on. In 2007 VacationRentals.com went for a cool $35m!
    Now you’re probably not going to come across anything like that, but you can still turn a quick profit with a bit of searching. The trick is to find available domain names which have some commercial value, snap them up and then list them for sale on a site like Sedo.com.
  22. Mystery shopping

    Be A Mystery Shopper, Its Easy!Today becoming a mystery shopper is easier than you think and you can get rewarded handsomely.
    We’ve recently come across a really fun smartphone app called Roamler that pays you in cash for completing various tasks in your local area. So definitely check that out first!
    More traditionally, there are plenty of agencies that pay you to visit all sorts of shops to feedback on how they are performing. For more info on where to apply see our guide to becoming a mystery shopper.
  23. Be an extra

    Do you fancy yourself as a budding young actor or just that person that walks past in the background shot of an episode of Eastenders? It could be you if you apply to be an extra.
    The pay isn’t bad either – £60-80 a day on average, and you hardly have to do anything!
    You can apply at Be On Screen for a number of opportunities or 2020 casting is another agency (just know they take a cut from your earnings).
  24. Sell all your old CDs, games and movies

    cds and dvdsIf you are looking to make a very quick buck, then selling your old bits and bobs that are cluttering up your room is a good idea.
    The best thing about it is that you can rip all the songs and films onto your laptop or external hard drive before selling them. This means that you are only really selling the plastic and artwork!
    You can earn anything from 10p to £20 per item, and the earnings can really add up if you have a large collection. Whilst you’re at it, see if your parents have any ‘clutter’ they’d be happy to see the back of.
    You can also sell almost anything for free on Amazon Trade-In orPreloved and sites like MusicMagpie will pay you instantly for sending in unwanted items.
    For more tips and places to sell check out our guide on selling DVDs, CDs and games.
  25. Sell on your education!

    Become a tutor to local GCSE or A-level students (find out more about tutoring here). There are now a few online tutor sites too, so you can go also global without too much hassle.
    graduate_studentYou may feel as if you aren’t qualified to be a tutor, but seeing as you are at university you will most likely have the qualifications to tutor for GCSE or even A-Level. Some parents may feel that their child will react better to a younger tutor, and it can be great experience, so why not give it a go?
    You can advertise on SchoolsTrader or sign up with UK Tutors. You can expect to earn around £10 an hour. However, make sure you don’t have to do too much tutoring around your exams!
  26. Sell your photos

    If you think you’ve got a good shot and a little creativity, try uploading your photographs for free to stock websites. A good starting point isFotolia or istockphoto.
    Make more money selling photo subjects that people are demanding, and there’s a great resource to find this out here. It might be a good idea to test them out in print first yourself (get free photo prints here).
  27. Rent out your car parking space

    saving petrol and saving moneySome student accommodation comes with a drive or garage. If you aren’t using your parking space and you live in a busy area then you might be in luck. There are plenty of people that may work in the city centre and are fed up of paying through the roof for daily parking.
    Advertise your space on Gumtree,Parklet or Just Park.
  28. Work as a charity collector

    Ok so this job takes a certain kind of person, as you’ll have to take a lot of rejection and be persistent.
    But if you are bubbly, personable and reckon you could sell ice to an Eskimo then this could actually be a great student money making idea. You get paid commission on new sign ups (typically around £20).
    Have a look at Wesser as well as charity websites like Oxfam.
  29. Babysitting

    messy kidAdvertise your services locally. It’s a classic money-maker, and for good reason. You get paid (well) to watch TV and not very much else!
    Be warned that you will need a CRB (Criminal Records Bureau) check to look after small children, even though some parents may not ask for one. If you are wondering what to charge, then look at local ads but you can expect to be paid over £6 hour even if you aren’t trained in child care. It really is easy money (unless you get stuck with the child from hell!).
  30. Become a freelance interviewer

    Do you have ambitions to take on a career in HR? Do you love asking questions? Believe it or not, there are companies that will ask you to carry out interviews for them and pay you for your time. It couldn’t be simpler.
    You could make £185 a week plus have your travelling costs covered. The downside is that you will have to commit to at least 20 hours a week, so make sure that you have the time! Apply at NatCen.
  31. Dog walking

    Dog walking may sound trivial but it’s big business. Just think that as a student you’re likely to have free time during the day when others are out at work and worried about their pets at home.
    You could make around £7 a dog for a 1 hour walk, and it’s also a great way to keep fit. Sign up to and try sites like Tailster that match you up with dog owners. Alternatively advertise your services locally with fliers or on classified websites such as Gumtree.
  32. Rent out your house for filming

    filmreelDirectors for TV and film are always on the hunt for houses to film in. For instance, a scene forCoronation Street was recently filmed in the student house one of the Save the Studenteditors used to live in!
    Not only can you make good money but it’s crazy seeing your own place on TV. Start out by looking at My House Your Shoot.
  33. Rent out your body

    student thinkingOk, ok – this isn’t what you think. “Renting out your body” can go as far as you want it to go. For example we reported on a story a while back about students who are turning to lap dancingto make a quick buck.
    If you are comfortable taking off your kit for a more acceptable cause then why not try life modelling. Sit there in the buff while budding artists capture your every curve (or pokey bits) in frightening detail! Try RAM, a website especially designed for these kind of jobs.
    You could also get involved in clinical drug trials. If this scares you a little then you can find more information here about what’s involved.
    Warning: Do not do anything you are not comfortable with, no matter how desperate you are for money! There has been an unhealthy rise in student prostitution in recent years – do not fall victim to it!
  34. Freelance work

    Perhaps you enjoy writing, managing Facebook pages or doing a little bit of graphic design in your spare time. There are so many freelance jobs out there that require simple skills or just time that someone else might not have.
    And the best things about freelancing is that you can work for clients in the UK and around the world with just an internet connection from home, to your own hours whilst developing valuable skills.
    A great place to start is with the leading freelance site Elance.com. Or try using our student job search to find freelance jobs.
  35. Busking

    Busking studentIf you can sing or dance then this is your time to shine baby! Did you know that Justin Bieber started off busking? That’s right, with a little work you can be as annoying as him.
    There are really no tips for this except choose a good spot with high footfall, make sure you are good and play your heart out. Some buskers in the past have been known to make upwards of £20 hour.
  36. Sell clothes on eBay

    ebay-logoEveryone’s best friend when it comes to getting rid of junk is eBay. Online auctions are a sure-fire way to turn that sleeveless jacket (which came in and out of fashion in a week) into hard cash.
    Some eBay sellers look at trends and try to predict what will be big ahead of the market. If you are good and don’t mind taking a risk then you can buy early in bulk and sell on when the craze hits.
    For lots more tips on selling on eBay read this guide.
  37. Sell your stories and videos

    If you have an interesting story then you could try selling it to the papers. It could be anything from sleeping with a professional footballer to getting caught in a clothes horse!
    One of the Save the Student team was unfortunate enough to have a pigeon fly through and smash their window at university and sold the story to The Sun for a tidy £50.
    You could also film your mates at all times and send it into You’ve Been Framed to net yourself £250 and a few seconds of fame.
  38. YouTube videos

    google-adsense-youtube-logoAccording to recent stats we now watch more videos on YouTube than searches on Google. And with the recently introducedYouTube Partner Program you can now profit from making and uploading videos. You will receive a percentage of the advertising revenue collected per 1,000 views.
    Depending on how successful you are (virality, subscriber base and topic) you can make a lot of money, and there are plenty of stories every week of more and more YouTubers making it their career.
    For more tips read our guide to making money from YouTube.
  39. Network marketing

    the business of the 21st centuryAlso known as Multi-Level Marketing (MLM), this is a business model that allows you to generate ongoing income in two ways: by making a commission selling products and by recruiting other members who go on to sell. The later allows you to make money from the sales made by those you have recruited.
    Importantly, this is not a pyramid scheme (they are illegal) because there is an end goal which involves a customer buying a product or service of value.
    It’s also not a ‘get rich quick’ scheme. You will have to work I’m afraid! However with the growth of social media, network marketing is becoming easier and lots of people are now making a decent living from it.
    This is a serious way of making good money on your own terms and it’s well worth reading up on it. I recommend getting “The Business of the 21st Century” by Robert Kiyosaki.
  40. Source property for wealthy investors

    contents insuranceWe all know how much money there is in property, but on the surface (with house prices as high as they are) you might be thinking this market is off-limits.
    Truth is, lots of people make a great deal of cash simply sourcing suitable properties for wealthy investors who simply have no time.
    The trick is to find properties below market value (BMV) by avoiding estate agents and instead flyering your area with your contact details offering to buy houses. Then approach investors with a no-brainer offer to pass on the details of cut-price property in exchange for a % of the sale value.
    Most cities will have monthly networking events for landlords and property investors. Track these down, sign up, put on your best suit and go along with lots of business cards. Or you could start on LinkedIn or even Twitter to build some initial contacts.
    As you might imagine, this isn’t necessarily a quick way to make money but once you’ve got a few investors in your phone book it can prove to be very lucrative in the long run. If you’re interested, I recommend readingthis book.

There are many other creative ways to make money as a student, such as our 50 business ideas. With any luck you’ll be on the road to making millions! Please feel free to share your own ideas by leaving a comment below.

How to Make Your Mobile Phone Number Appear As a Private Number

Want to hide your number from the business you're about to call, or don't want your friends knowing who's calling them? You can block your Caller ID information so that your number does not appear on the recipient's phone. You can do this by using a special prefix, contacting your carrier, or by using the features on your device. See Step 1 below to learn how.


1
Use a caller ID blocking prefix. In many countries, you can enter a code before you dial a number and your phone number will be blocked from appearing on the recipient's caller ID. The code varies depending on your country and your service provider, and it is not possible to block in all countries. Enter the prefix, followed immediately by the number you are dialing. For example, if you are in the US and want to call (555)123-4567, you would enter *675551234567.
  • North America - *67 or #31#
  • Albania, Australia, Denmark, Greece, Israel, Italy, Netherlands, Sweden: #31#
  • Argentina, Iceland, Switzerland, South Africa: *31*
  • Germany: *31# or #31#
  • Hong Kong: 133
  • Japan: 184
  • UK and Ireland: 141
  • New Zealand: 0197 (Telecom) or *67 (Vodafone)
  • Australia: 1831 or #31#
  • India: *31# - Must be enabled by network.
If your country is not listed, chances are you can use either *67 or #31#. Most GSM mobile networks work with #31#.[1]
2
Contact your carrier. If you want all of your phone calls to always be blocked, you can contact your carrier and set up permanent Caller ID blocking. There is typically a charge for this, and the fees and terms will vary from carrier to carrier.
  • Most pre-paid plans cannot enable permanent Caller ID blocking.
  • India users need to enable Caller ID blocking before they can use the blocking prefix.
  • Some people have Anonymous Call Rejection enabled, which means your call will not be able to be completed unless you call from an unblocked number.
  • If you want to make an unblocked call after setting up a block on all your outgoing calls, you will need to enter the unblocking prefix before the phone number. Some of these include:
    • Australia: 1832
    • Ireland: 142
    • UK: 1470
    • North America: *82
    • New Zealand: 0196 (Telecom) or *82 (Vodafone)
    • Hong Kong: 1357
    • Japan: 186
    • Most GSM Networks: *31#
  • 3
    Hide your number through your device's settings. Many phones allow you to block your Caller ID information by changing the phone's settings. If your phone does not have the option to do this, then it is not allowed by your carrier, and you will have to try one of the previous steps.
    • iPhone - Open the Settings app, tap Phone, tap Show My Caller ID, and then toggle the slider to ON.[2]
    • Android 4.0 and earlier - Open the Settings app, tap Call, tap "Additional settings", tap Caller ID, and then tap "Hide number".
    • Android 4.1 and later - Open the Phone app, tap the Menu button, tap "Call settings", tap Caller ID, tap "Hide number".[3]
    • Windows Phone 8 - Open the Phone app, tap the More button (...), tap "settings", tap the box under "Show my caller ID to", tap "no one" or "my contacts".[4]
    • BlackBerry - Press the Menu key, click Options, click General Options, find the Restrict My Identity field, set it to Always.[5]

How can I publish an Android app free in the Google Play store?

Ananthu Anil
Ananthu AnilContent Writer, designer
4 upvotes by Quora UserAnonymous, Akshit Rewari, and Quora User
As sad as it is, you can't. Google put the fee for the developer account so that random malware and unwanted things aren't uploaded on to it. With a fee people will think twice before making an app that won't make any turnover. So this increases the quality of apps available on the store to some extent. 

Even then, a little googling turned up an xda article stating that they have a dev account and would happily upload the apk for free. Of course, your app will end up in someone else's hands.  

If you have a great idea for an app, pay thay initial fee. The money you'll make from Google's ads program will be enough to make it profitable. 

Happy developing. 

Thanks for the A2A.

Wednesday, June 3, 2015

Robots that recover from damage in two minutes

LONDON: Scientists have developed next-generation of robots that automatically recover from injury in less than two minutes by adapting like humans and animals.

A video shows a six-legged robot that adapts to keep walking even if two of its legs are broken. It also shows a robotic arm that learned how to correctly place an object even with several broken motors.

In contrast to today's robots, animals exhibit an amazing ability to adapt to injury.

There are many three-legged dogs that can catch Frisbees, for example, and if your ankle is sprained, you quickly figure out a way to walk despite the injury.

The scientists took inspiration from these biological strategies.

Before it is deployed, the robot uses a computer simulation of itself to create a detailed map of the space of high-performing behaviours.

This map represents the robot's 'intuitions' about different behaviours it can perform and their predicted value.

If the robot is damaged, it uses these intuitions to guide a learning algorithm that conducts experiments to rapidly discover a compensatory behaviour that works despite the damage.

The new algorithm is called 'Intelligent Trial and Error.'

"Once damaged, the robot becomes like a scientist," said lead author Antoine Cully from the Pierre and Marie Curie University in France.

"It has prior expectations about different behaviours that might work, and begins testing them. However, these predictions come from the simulated, undamaged robot. It has to find out which of them work, not only in reality, but given the damage.

"Each behaviour it tries is like an experiment and, if one behaviour doesn't work, the robot is smart enough to rule out that entire type of behaviour and try a new type," Cully said.

"For example, if walking, mostly on its hind legs, does not work well, it will next

Tuesday, June 2, 2015

HTML redirection

HTML redirect. HTML meta refresh redirection code.

HTML meta refresh redirect is a client side redirect and is not 301 permanent redirect.
The HTML meta refresh with 0 seconds time interval, is considered by Google as a hint for 301 redirect for pagerank transfer.
If you want to do real 301 permanent redirect, you can do it with PHP redirect after enabling PHP code in HTML files.

HTML meta refresh redirect

The redirection is done with the meta refresh in the head section.
The link in the body section for fallback purposes.
Replace old page with redirection code with the URL of the page you want to redirect to.
old-page.html:
<!DOCTYPE html>
<html>
<head>
   <!-- HTML meta refresh URL redirection -->
   <meta http-equiv="refresh"
   content="0; url=http://www.mydomain.com/new-page.html">
</head>
<body>
   <p>The page has moved to:
   <a href="http://www.mydomain.com/new-page.html">this page</a></p>
</body>
</html>

HTML meta refresh redirect example

html-redirect-test.htm:
<!DOCTYPE html>
<html>
<head>
   <!-- HTML meta refresh URL redirection -->
   <meta http-equiv="refresh"
   content="0; url=http://www.rapidtables.com/web/dev/html-redirect.htm">
</head>
<body>
   <p>The page has moved to:
   <a href="http://www.rapidtables.com/web/dev/html-redirect.htm">this page</a></p>
</body>
</html>

Press this link to redirect from html-redirect-test.htm back to this page:

HTML canonical link tag redirect

The canonical link does not redirect to the preffred URL, but it can be an alternative to URL redirection for websites that most of the traffic arrives from search engines.
HTML canonical link tag can be used when there are several pages with similar content and you want to tell the search engines which page you preffer to use in the search results.
Canonical link tag can link to the same domain and also cross-domain.
Add the canonical link tag to the old page to link to the new page.
Add the canonical link tag to the pages that you preffer not to get search engines traffic to link to the preffered page.
The canonical link tag should be added in the <head> section.
old-page.html:
<link rel="canonical" href="http://www.mydomain.com/new-page.html">

URL redirection ►

URL HTTP Redirection

URL http redirection is an automatic URL change operation from one URL to another URL.

URL redirection

URL page redirection is an automatic URL change operation from one URL to another URL.
This redirection is done for the following reasons:
  1. Redirect from old obsolete URL to a new updated URL.
  2. Redirect from old obsolete domain to a new domain.
  3. Redirect from non www domain name to a www domain name.
  4. Redirect from short URL name to a long URL name - URL shortening service.
  5. URL shortening service will allow the user to insert a short URL and be redirected the the long URL that has the real page contents.
The user may reach the old URL from an old external links or a bookmark.
by the site's webmaster who adds a script.

Server side redirect

Server side redirection is done in the server, by configuring the Apache / IIS server software or by using PHP / ASP / ASP.NET script.
This is the preferred way to redirect URLs, since you can return HTTP 301 Moved Permanently status code.
Search engines use the 301 status to transfer the page rank from the old URL to the new URL.

Client side redirect

Client side redirection is done in the web browser of the user, by using HTML meta refresh tag or by Javascript code.
Client redirect is less preferred, since it does not return HTTP 301 status code.

Where to put redirect code

Domain
name
Hosting
server
Redirect code
placement
not changednot changedold page on same server
not changedchangedold page on new server
changednot changedold page on same server
changedchangedold page on old server
* Only with .htaccess redirect: add redirect code to httpd.conf file or to .htaccess file.

HTTP status codes

Status codeStatus code nameDescription
200OKsuccessful HTTP request
300Multiple Choices 
301Moved Permanentlypermanent URL redirection
302Foundtemporary URL redirection
303See Other 
304Not Modified 
305Use Proxy 
307Temporary Redirect 
404Not FoundURL not found

HTTP 301 redirect

HTTP 301 Moved Permanently status code means a permanent URL redirection.
The 301 redirect is the preferred way to redirect URLs, since it informs search engines that the URL has moved for good, and search engines should put the new URL page in the search results instead of the old URL page and transfer the new URL page, the page rank of the old URL page.
The 301 redirect can be done across domains or on the same domain.
Google recommends to use 301 redirect.

Redirect options

Redirect scriptRedirect sideOld page file typeRedirect URL or domainOld URL server type301 redirect support
PHPServer-side.phpURLApache / Linuxyes
ASPServer-side.aspURLIIS / Windowsyes
ASP.NETServer-side.aspxURLIIS / Windowsyes
.htaccessServer-sideallURL / DomainApache / Linuxyes
IISServer-sideallURL / DomainIIS / Windowsyes
HTML canonical link tagClient-side.htmlURLallno
HTML meta refreshClient-side.htmlURLallno
HTML frameClient-side.htmlURLallno
JavascriptClient-side.htmlURLallno
jQueryClient-side.htmlURLallno
redirect script - the scripting language that is used for the redirection.
redirect side - where the redirection takes place - server-side or client-side.
old page file type - the type of the old URL page that can can contain the scripting language of the redirect code.
redirect URL or domain - does support URL redirection of a single web page or domain redirection of a whole website.
typical old URL server type - the typical software and operating system of the server.
301 redirect support - indicates whether permanent 301 redirect status response can be returned.

PHP redirect

Replace old-page.php code with redirection code to new-page.php.
old_page.php:
<?php
// PHP permanent URL redirection
header("Location: http://www.mydomain.com/new-page.php", true, 301);
exit();
?>
The old page must have .php file extension.
The new page can be with any extension.

Apache .htaccess redirect

.htaccess file is a local configuration file of the Apache server.
If you have permission the change the httpd.conf file, it is better to add the Redirect directive in thehttpd.conf instead of the .htaccess file.

Single URL redirect

Permanent redirect from old-page.html to new-page.html.
.htaccess:
Redirect 301 /old-page.html http://www.mydomain.com/new-page.html

Entire domain redirect

Permanent redirect from all domain pages to newdomain.com.
 .htaccess file should be at the old website's root directory.
.htaccess:
Redirect 301 / http://www.newdomain.com/

ASP redirect

old-page.asp:
<%@ Language="VBScript" %>
<%
' ASP permanent URL redirection
Response.Status="301 Moved Permanently"
Response.AddHeader "Location", "http://www.mydomain.com/new-page.html"
Response.End
%>

ASP.NET redirect

old-page.aspx:
<script language="C#" runat="server">
// ASP.net permanent URL redirection
private void Page_Load(object sender, EventArgs e)
{
   Response.Status = "301 Moved Permanently";
   Response.AddHeader("Location","http://www.mydomain.com/new-page.html");
   Response.End();
}
</script>

HTML meta refresh redirect

HTML meta refresh tag redirection does not return 301 permanent redirect status code, but considered by Google as a 301 redirect.
Replace old page with redirection code with the URL of the page you want to redirect to.
old-page.html:
<!-- HTML meta refresh URL redirection -->
<html>
<head>
   <meta http-equiv="refresh" 
   content="0; url=http://www.mydomain.com/new-page.html">
</head>
<body>
   <p>The page has moved to:
   <a href="http://www.mydomain.com/new-page.html">this page</a></p>
</body>
</html>

Javascript redirect

Javascript redirect does not return 301 permanent redirect status code.
Replace old page with redirection code with the URL of the page you want to redirect to.
old-page.html:
<html>
<body>
<script type="text/javascript">
    // Javascript URL redirection
    window.location.replace("http://www.mydomain.com/new-page.html");
</script>
</body>
</html>

jQuery redirect

jQuery redirect is actually another type of Javascript redirect.
jQuery redirect does not return 301 permanent redirect status code.
Replace old page with redirection code with the URL of the page you want to redirect to.
old-page.html:
<!DOCTYPE html>
<html>
<body>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script type="text/javascript">
   // jQuery URL redirection
   $(document).ready( function() {
      url = "http://www.mydomain.com/new-page.html";
      $( location ).attr("href", url);
  });
</script>
</body>
</html>

HTML canonical link tag redirect

The canonical link does not redirect to the preffred URL, but it can be an alternative to URL redirection for websites that most of the traffic arrives from search engines.
HTML canonical link tag can be used when there are several pages with similar content and you want to tell the search engines which page you preffer to use in the search results.
Canonical link tag can link to the same domain and also cross-domain.
Add the canonical link tag to the old page to link to the new page.
Add the canonical link tag to the pages that you preffer not to get search engines traffic to link to the preffered page.
The canonical link tag should be added in the <head> section.
old-page.html:
<link rel="canonical" href="http://www.mydomain.com/new-page.html">

HTML frame redirect

In frame redirection the new-page.html file is viewed by an html frame.
This is not a real URL redirection.
Frame redirection is not search engines friendly and is not recommended.
old-page.html:
<!-- HTML frame redirection -->
<html>
<head>
    <title>Title of new page</title>
</head>
<frameset cols="100%">
    <frame src="http://www.mydomain.com/new-page.html">
    <noframes>
     <a href="http://www.mydomain.com/new-page.html">Link to new page</a>
    </noframes>
</frameset>
</html>