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Hydrofoil Surfing - A New Adrenalin Sport

Listening to Silvio Rivier, the host of Global Village, there was a section on Hydrofoil Surfing. I turned to the television, interested by this large word, to see this guy surfing a foot above the water! It seems that instead of floating along the water like a normal surfboard this board actually would be below the water while you stand on it. A jet ski pulls the surfer up to speed, bringing him up to the top of the water, but that's not it, there's a fin that leads down a foot and a half or so below the board, and attached to the end of that is a special shaped piece of metal called a hydrofoil that collects the water as it comes up from the bottom of the sea and goes over as a wave. The surfer then keeps going upwards, until the "foil" is about 4 inches under the water. Therefore the surfer can balance above the water, with very little resistance & going very fast. It's technically possible that this could be used for surfing not just close to land, but hundreds of miles out, so the person can surf for as long as their legs hold out, because they can surf in rougher water. Does any body think they could build one of these? Balancing on one is supposed to be like using a uni-cycle, & I'm having trouble surfing normally so even if I did build this I probably couldn't ride it. This goes out to Laird Hamilton, the creator of this funky board, & I'm looking forward to an Instructable. Cheers everybody, ~K P.S. The links aren't working so I'll add them as soon as possible. Neither is the video button, sorry about that, I'll have to add a picture instead.

Topic by Kryptonite    |  last reply

Super-fast kite-surfing

A new kite-board patent was published in August: a hyrofoil board.A curved hydrofoil lifts the whole board out of the water, cuts friction dramatically and gaining massive amounts of speed.Apparently.

Topic by Kiteman    |  last reply

What is the easiest to build form of human powered propulsion for a cardboard boat(must be made of cardboard)?

Me and a group of people are working on a cardboard boat and the propulsion has to be made mostly of cardboard.  We want to use something better than paddles.  I have been looking around to try and find something that can be adapted out of cardboard and have only found a couple of methods of propulsion. 1. paddle wheel 2. normal propeller 3. impeller 4. hydrofoil wing Anything else that might work that is not in this list would be awesome.  Remember, this is human powered so the RPMs will be low.

Question by critterfluffy    |  last reply

(newsletter) Chocolate Painting, Redirect a Light Switch, Car Dash Camera Mount

Sign-up for this newsletter: Earthjustice United States of Efficiency Contest - Create an energy-saving Instructable and you could win a MacBook Pro! April Fools Contest - Share your best pranks, tricks, and practical jokes! Klutz Rubber Band-Powered Contest - Open to any rubber band-powered contraption. Win cool books from Klutz!Burning Questions 7 - Answer our questions and win the love of thousands, or at least a spiffy new t-shirt! ThinkGeek Hacks Contest - Hack or modify any ThinkGeek item and win a $250 gift certificate! Epilog Challenge - Enter any awesome project with a green twist for the chance to win an Epilog Zing laser cutter or gift certificates from Ponoko! Starburst Mirror Compact and Cheap Hydroponics System Car Dash Camera Mount Desktop Energy Seed Lamp Win a laser cutter! Stretch, twist, and power something cool Etch Aluminum Panel Labels/Designs Chicken Barrow Carbon Composite Hydrofoil From Junk! Manly Crafts Guide Featured questions from our new Answers section: What can be put on the compost pile? Is it possible for a device to be 100% efficient? Robot Racer Redirect a Light Switch Build a PC Enable Half Stars In iTunes Win a green MacBook Pro! Closes for entries this Sunday! Home Gardening Guide Fabric Tilt Sensing Bracelet Chocolate Painting Reverse Clock Sign-up for this newsletter:

Topic by noahw  

Tim Anderson

Meet Tim Anderson! He's the co-founder of Z-Corp 3D printers, host of the Know How Show, author of the Heirloom Technology column in MAKE magazine, and the most prolific Instructables author with 222 projects and counting! So, besides teaching you how to get a free yacht and how to fly a hydrofoil, what is Tim doing for the betterment of humanity?  Here's how he describes it in his profile: Tim's philosophy involves building minimum-consumption personal infrastructure from recycled scavenged materials.  Redirecting the waste stream.  Doing much with little.  A reverse peace-corps to learn from poor people all over the world. In practice, this means traveling the world documenting traditional Pacific Island sailing canoes, collecting handy tricks from Australia, Guatemala, Indonesia, and the US, and teaching us how to repair or reuse almost anything.  (When you're done with the Handy Tricks series, check out his Instructable showing How Not To.)   You can also learn how to move a tree, or keep an old truck running. He's a believer in Garbage Santa, who leaves "trash" treats for creative people to find and repurpose, and can do almost anything with recycled bike innertubes.  He's also an enthusiastic sailor, bicyclist, and kiter who builds all of his own equipment - check out his ice gear in this video: So, are you inspired yet?  Do you believe in Garbage Santa?  And which Tim Anderson project are you most likely to try? This post has been sponsored by Pepsi. The Pepsi Refresh Project celebrates the people, businesses, and non-profits with ideas that will have a positive effect on our world.

Topic by canida    |  last reply

Top 50 Instructables of 2007 Ranked by Pageviews

This is the first in a series of data-analysis posts I'm going to make over the next few days (or hours if I can't stop myself). I love statistics, analysis, and raw data and so thought I'd share some of the really cool stuff with you. Thanks to trebuchet03 for helping with this and actually crafting the queries. Here are the top Instructables published in 2007 ranked by pageviews (I know the year isn't over yet, but we're close enough):Instructable - Number of Pageviews1. Invisible Book Shelf - 399,6472. Laser Flashlight Hack!! - 374,0233. Mouse Mouse! - 348,8804. Opening up a coke machine - 199,5255. Wallet made from a computer keyboard - 177,1766. Creating a 3D effect with image editing software (GIMP or Photoshop) - 158,4367. [!-You_ll-be-Surprised... 12 Volt Battery Hack! You'll be Surprised...] - 142,6318. How to Kiss - 132,0659. Zippo Trick: The Twilight Zone - 128,89410. Cracking/Hacking Windows Passwords - 126,39211. Lock Someone To A Tree Without Ropes, Chains, Or Any Other Ties (updated 25/07/07) - 124,42012. Wifi Signal Strainer (WokFi) Long Distance - 122,18913. Han Solo in carbonite chocolate bar! - 119,67014. Hidden Door Bookshelf - 117,38015. Homemade Infrared Goggles! For Under $10 - 117,34816. How to Make a Three Axis CNC Machine (Cheaply and Easily) - 113,82217. Trigger GREEN Traffic Lights - 111,99218. 25MM Pneumatic Sniper Rifle - 104,88019. Take Infrared Pictures With Your Digital Camera - 104,37620. Shutdown Your School! - 101,28821. Build a Nintendo NES PC - 98,75622. Interactive Multitouch Display - 96,52623. How to date a girl who is way out of your league. - 95,86124. make crystal clear ice! - 94,76425. Build a Tetris DVD (or book) shelf - 94,16226. Easy to Build Desk Top 3 Axis CNC Milling Machine - 93,14227. Solar Thermal Water Heater For Less Than Five Dollars - 90,62228. How to perform your own Tongue Bifurcation - 88,90929. EMP shopping cart locker - 87,82330. How to "Fly" a Human Powered Hydrofoil - the "Aquaskipper" - 85,77931. Barbie Doll Electric Chair Science Fair Project! - 85,48932. Use an LCD Monitor as a TV without a Computer - 82,44133. How To Make A "Secret Container" Out Of A LIGHTER - 81,40334. $60 Laser Engraver / Cutter - 79,76035. Turn Your Old CRT Computer Monitor Into A Fish Tank ! ! ! - 78,59636. Make a cool hologram illusion! - 75,99137. $100 Super Bright Flashlight for under $10! - 75,78638. The Ice Bulb - 74,84839. Solar Heater - 73,96140. Laptop Converted to 2nd Monitor - 73,26641. Tetris Ice Cubes - 72,22042. Get Money from Jammed Vending Machines, Pay Phones, etc. - 71,46143. How to Make Your Own Prototypes : How to make your own Plastic Vacuum Former - 70,30944. Laser Cutter Contest Update: Fewer Rules, More Time! - 70,09245. Portable 12V Air Conditioner --Cheap and easy! - 69,88546. Homemade Laundry Detergent - 68,42647. The Spiral Data Tato -- A Curiously Complex Origami CD Case - 68,42048. String Tripod - 68,20749. [ How to softmod your xbox...for FREE] - 66,58850. How to make a Green Lantern ring- including a glowing version! - 65,802

Topic by ewilhelm    |  last reply