Futility Closet posted a how-to for this neat mathematical card trick by New York magician Henry Christ. It's called All Roads.
Shuffle a deck thoroughly and deal out nine cards in a row, face down. Choose a card, look at it, and assemble the nine cards into a stack face down, with the chosen card at the top. Add this stack to the bottom of the deck.
Now deal cards one at a time from the top of the deck into a pile, face up, counting backward from 10 as you do so. If at some point the card’s rank matches the number said, then begin dealing into a new pile at that point, counting again backward from 10. If you reach 1 without a match occurring, then “close” that pile by dealing a face-down card onto it, and start a new pile.
Keep this up until you’ve created four piles. Now add the values of any face-up cards on top of the piles, count down through the remaining cards until you’ve reached this position, and you’ll find your chosen card.
This works because it always leads to the 44th card in the deck, but it takes some thinking to see this. You can put a sealed deck into a stranger’s hands and direct him to perform the trick himself, with mystifying results.
I am in awe of people who can think of things like this.
Google’s recently announced new redesign of desktop search results would have made ads pretty much look exactly like search results. Google is now backtracking, listening to the criticism, and trying a different visual approach.
Mac users are getting hit with Shlayer, a malware that installs an “Any Search” bar on their computer, reports Lifehacker.
Latest update blurs ads vs. search results line
Anyone who’s ever been fishing can attest to the fact that it can be mind-numbingly boring at times, which is where the intrepid GoFish Cam Wireless Underwater Fishing Camera comes into play. This WiFi-enabled camera will help you catch more fish and have more fun while you’re doing it, thanks to a 1080p lens that […]
Boxed wines have come a long way since their admittedly subpar debut, and it’s now possible to grab a box of wine that delivers a surprising amount of flavor and body for a price that won’t break the bank. This Boxxle Premium Wine Dispenser makes it even easier to enjoy your favorite bag-in-box wine by […]
If you’re interested in either beginning or furthering a career in graphic design, you need to have a thorough understanding of Adobe’s famed editing and illustration tools, and these bundles will get you to where you need to be for a fraction of what you’d pay for an in-class education. 1. The Essential Adobe Photoshop […]