What type of homemade sled works the best?
823560
Trash can lids or pool inflatables (intertubes,floats)  Plastic tops to rubbermaid storage buckets.
76606
Night sledding if you are in cold weather. Find a country club or remote hill and sled when it gets dark....
813669
there are wooden crafts availabe...so u can buy and those models and work on the remot control part..there are more manuals available to hook uo with those contrls part...
272564
I am an avid skier and outdoor enthusiastic (as you can see from my avatar). I recently found a site called www.evogear.com that sells ski, snowboard, and wakeboard gear. They have the best customer service, very low prices, and the coolest gear on the planet. I think they are based in Seattle, WA. I have never had a bad experience with them and I've placed four orders!
133048
Hello, \n\nThis problem is a bit more involved than you might initially think. There are 4 major considerations you must take into account. First, the acceleration is dependant on the angle of the hill at any given time. Therefore, acceleration is NOT constant, rather fluctuating with the incline. Second, the wind resistance is NOT constant by any means. It increases exponentially with the speed of the sled. Third, the force of the kinetic friction is not constant either. While the coefficient of friction does increase somewhat with speed (you could use an average for this), you cannot neglect the increase in friction when the sled goes around a corner. As you know, the friction is based on the normal force of the sled. At 90mph, the centripetal acceleration around a curve is V^2/r (V=velocity, r is radius of corner) which becomes quite considerable, even though steel on ice only has a kinetic coefficient between .01 - .05. \n\nNow that I have bored you out of your mind, the full equation would look something like this (I’m writing everything longhand so you know what I’m talking about)\nSum of the forces = mass x gravity x sin(angle of hill) – [(coefficient of friction) x mass x gravity x cos(angle of hill) – mass x velocity ^2 / radius of curve] – (Force of air drag)\n\nNotice the term included to account for curves: – mass x velocity ^2 / radius of curve\nDrops to zero when they are going in a straight line (r = infinity). \n\nTo find your acceleration (at a specific point in time), you simply divide everything by the mass of the sled and there you go!\n\nPS. don't take physics advice from dental students ;P
815864
My dad made a 16' cedar strip canoe.  \n\nIt is beautiful, light, and quiet on the water.  I know there are books available at Barnes and Noble or Borders, but I know he just created the form and learned how to fiberglass finish the outside.  \n\nGood luck!
312800
I demonstrated how to properly attach a snowboard.\n\nYou can re-string a guitar, do napkin folding, US flag folding, proper diapering,how to lift a dumbell in order to build a particular muscle, how to wrap a gift, etc.
204377
sled down an iced path
570010
Hi there,\n\nHere are some great websites that explain the entire process:\n\nhttp://www.rcskim.com/makeaboard/How%20to%20build%20a%20skimboard.html\n\nhttp://www.skimonline.com/equipment/board_building.htm\n\nhttp://www.surfing-waves.com/howto/make_skimboard.htm
878687
i compleately agree lacrosse is the best thing that ever happened to me and ive been trying to do the same thing... Cannot wait for the new Voyce to come out... im gonna buy it \n\nPeace
197008
Have a snowball fight.\nBuild a snowman (a small one I guess)\nMake snow angels.\nIf you had an old inner tube, you could go sledding.\n\nThat's not a bunch, but it's enough to keep you busy for an afternoon!
752750
i would have to say a stunt gun...but u kno the real thing is the best
638630
A lathe, a drill press, and a milling machine would be a good start, although how you plan to use them when you don't even know the names for them is a bit of a mystery to me.  Try Harbor Freight or Northern Tools.\n\nhttp://www.harborfreight.com/\nhttp://www.northerntool.com/
655984
In high school I made a paper-mache canoe. I even floated in it, inside the pool. They almost killed the teacher for that - didn't touch me. I got into my projects.\nA self propelled boat = make a lightweight boat out of balsa wood. Build a paddlewheel and wind it up with a rubber band, so that when you release it, it will go a little way.
197350
I just did a science project with my 8 yr old son. We made a "block and tackle" pulley system. We showed how pulleys reduced the effort it takes to lift objects. It was a hit. Everyone was dieing to try it. Little girls and grown men alike were pulling the ropes.
1168144
Try a divining rod.  No one can explain how they word scientifically, but there are people (mostly old, rural folk) who can quite successfully use it to find a good spring.  My dad has been pretty successful (or lucky according to some people) doing it.
900921
The traditional two seater PARIS Glad A Boggan sled...classic.  The orange one with blue handles...