Can a number be illegal?
That's the question the YouTube channel Numberphile tried to answer in a recent video. The reasoning goes something like this: every digital object is, at its heart, a number. Everything you see on your computer screen was at one point written as a string of zeroes and ones, in a language called binary, which is the only language computers "speak." Through various programs, these ones and zeroes are converted into the media we see on our computer screens -- anything from .jpg images to .mp3 files to simple .txt documents.
When it's laid out like that, it's easy to see why some numbers might be illegal.
Some numbers, when turned into text, might reveal U.S. military secrets. Some numbers, when turned into a photograph, might display child porn. Of course, says Numberphile's narrator James Grime, making a number itself illegal is absurd -- but what if someone distributes a number intending that other people turn it into some other kind of information? Is the number illegal then?
Watch the video to find out:
Related on HuffPost:
The Japanese government counter-terrorism practice of <a href="http://www.reuters.com/article/2007/11/20/us-japan-fingerprinting-idUST23858020071120" target="_hplink">fingerprinting foreigners who enter the country</a> may have inspired Doctor Tsutomu Matsumoto to invent "fingerprinting gels", a way of faking fingerprints for scanners. <a href="http://www.dansdata.com/uareu.htm" target="_hplink">Learn how</a> to make your own here.
White Noise Generator
Worried someone around you is <a href="http://articles.businessinsider.com/2011-07-28/strategy/29998051_1_bank-employee-consent-conversation" target="_hplink">secretly recording everything you do?</a> No fear! There's a relatively low-tech way to defeat such snoops, via white-noise-producing <a href="http://www.amazon.com/Productive-Home-Security-Prducts-Jammer/dp/B002PJ7PYS" target="_hplink">audio jammers</a>. These tiny devices use good ol' white noise to blur the sound picked up by hidden microphones and other surreptitious recording devices.
<a href="http://www.technologyreview.com/view/421768/silence-smart-phones-at-thanksgiving-dinner-with/" target="_hplink">MIT's Technology Review</a> calls it the newest, hottest Thanksgiving accessory -- but you can use phone-size "<a href="http://en.wikipedia.org/wiki/Faraday_cage" target="_hplink">Faraday cages</a>" like this (sold by <a href="http://www.uncommongoods.com/product/phonekerchief?9gtype=search&9gkw=phone kerchief&9gad=6315569457&gclid=CKWq9s2krLICFcRM4AodwDoAAw" target="_hplink">uncommongoods</a>) to block your cellphone's call signal, WiFi and GPS. Handy now that<a href=" http://arstechnica.com/tech-policy/2012/08/federal-court-rules-cops-can-warantlessly-track-suspects-via-cellphone/" target="_hplink"> federal courts are ruling that cops can track suspects via cellphone sans warrant</a>, and <a href="http://www.zdnet.com/apple-patent-could-remotely-disable-protesters-phone-cameras-7000003640/" target="_hplink">Apple can remotely disable your phone camera with a click</a>. As security researcher <a href="http://nplusonemag.com/leave-your-cellphone-at-home" target="_hplink">Jacob Appelbaum said in an interview with N+1 back in April</a>, "Cell phones are tracking devices that make phone calls." So shouldn't you be prepared for when you <em>don't</em> want to be tracked?
Hidden cameras got you down? Blind them all with a simple baseball cap lined with infrared LEDs. <a href="http://creator.wonderhowto.com/amiehold/" target="_hplink">Amie, a hacker on WonderHowTo</a>, shows the world <a href="http://mods-n-hacks.wonderhowto.com/how-to/make-infrared-mask-hide-your-face-from-cameras-201280/#" target="_hplink">how to make one</a>, while <a href="http://translate.google.com/translate?u=http%3A%2F%2Fwww.oberwelt.de%2Fprojects%2F2008%2FFilo%2520art.htm&langpair=de%7Cen&hl=en&ie=UTF8" target="_hplink">this German art exhibition</a> lays out how these ingenious devices work.
These receivers reveal the telltale electronic crackle of hidden mics and cameras. Strangely enough, they were around long before "surveillance culture" became a <a href="http://digitalcommons.law.yale.edu/ylsspps_papers/64/" target="_hplink">common phrase</a>. Today they're sold in all sorts of <a href="http://www.gadget-playground.com/bug-detection.html" target="_hplink">shops for surveillance paranoids</a>.
Sometimes hiding your face isn't enough; sometimes you don't want to be seen at all. For those days, there's camera maps. The <a href="http://www.mediaeater.com/cameras/locations.html " target="_hplink">NYC Surveillance Camera Project</a> is currently working to document the location of and working status of every security camera in New York City. This project has been replicated by others in <a href="http://www.notbored.org/boston.html" target="_hplink">Boston</a>, <a href="http://www.notbored.org/chicago-SCP.html" target="_hplink">Chicago</a> and <a href="http://www.bloomingtonsecuritycameras.com/map.html" target="_hplink">Bloomington</a>, Indiana. <a href="http://www.notbored.org" target="_hplink">Notbored.org</a> has even published a guide to making your own surveillance camera maps (<a href="http://www.notbored.org/map-making.html " target="_hplink">here</a>).
Credit to artist <a href="http://ahprojects.com/" target="_hplink">Adam Harvey</a> for this one. Inspired by the <a href="http://www.bobolinkbooks.com/Camoupedia/DazzleCamouflage.html" target="_hplink">"dazzle camouflage" </a>used on submarines and warships during World War I, he designed a series of face paint principles meant to fool the facial recognition schemas of security cameras. Check out <a href="http://dismagazine.com/dystopia/evolved-lifestyles/8115/anti-surveillance-how-to-hide-from-machines/ " target="_hplink">The Perilous Glamour of Life Under Surveillance</a> for some tips on designing your own camera-fooling face paint.
Walmart may be the premier symbol of corporate America, but its disposable cellphone selection can help you start a thoroughly maverick lifestyle. <a href="http://www.walmart.com/ip/TracFone-Samsung-S125G-Prepaid-Cell-Phone-Bundle/20933059" target="_hplink">$10 TracFones</a> work on most major networks, including <a href="http://www.prepaidphonenews.com/2011/12/how-to-get-tracfone-net10-or-straight.html" target="_hplink">AT&T, T-Mobile, Sprint and Verizon</a>, and come with minutes prepaid so you can dispose of the devices when you're done.
Radio-Frequency Identification (RFID) chips are now <a href="http://electronics.howstuffworks.com/gadgets/high-tech-gadgets/rfid.htm" target="_hplink">regularly implanted</a> in passports, ID cards, credit cards and travel papers. These tiny chips make machine-reading your documents easier -- but could also let anyone with the right type of scanner <a href="http://articles.cnn.com/2006-07-10/tech/rfid_1_rfid-industry-rfid-journal-rfid-chips?_s=PM:TECH " target="_hplink">scrape your information <em>and</em> track your whereabouts</a>. Luckily, gadget geeks have come to the rescue again, this time with<a href="http://www.thinkgeek.com/product/8cdd/" target="_hplink"> RFID-blocking wallets</a>. Working on the same principle as the "phonekerchief", these wallets create a Faraday cage around your items, keeping their data secure until you take them out to be scanned where they're supposed to be scanned. Destroying the chip is simpler: <a href="http://www.instructables.com/id/How-to-blockkill-RFID-chips/" target="_hplink">just nuke it in the microwave for five seconds</a>. Of course, whatever you're microwaving might <a href="http://www.youtube.com/watch?v=4_5UYcyO3Pg" target="_hplink">burst into flames</a> first...