How can i build my own Newton's Cradle?
960581
would this be acceptable: \n\nhttp://www.fi.edu/pieces/knox/automaton/newtoncradle.htm
345363
Try this website:\n\nhttp://www.screwgravity.com/
88330
You have to start with the Jolly Roger - scull and cross bones.  Sails could be screwers and light cardboard curved with centre holes top and bottom, nicely decorated, two triangular ones at the front.  The hull could be a Plastic coke bottle cut lengthways.  Glue something heavy to the bottom and then a layer of foam for the screwers to stick into.  Fashion  cardboard to fit as a deck, make holes for the screwers.  Find some netting (stocking material or the stuff they use in fruit punnets.  Brown wool for rigging and put it all together and then caste off me hearties.
205891
Oh, this one is easy. \n\nGo out into space (probably just inside the asteroid belt), and build a 30 kilometer long linear accelerator made out of low impedance electromagnets. Attach it to a huge solar collector, a huge capacitor bank, and a transformer to transform whatever voltage the collector recieves voltage at, to just below the breakdown voltage of your capacitor or electromagnets (whichever is lower).\n\nAssemble a big paramagnetic rod out of something nice and massive (like iron), and coat it with a few thousand tons of lithium, or something similar in reactivity. The entire projectile should mass no less than ten thousand tons. \n\nCharge up your capacitor bank, point the accelerator at the Earth, and tell them to turn over control of all governments to you, or you're going to hit the Earth with a very large plasma projectile traveling at a very high rate of speed...
102591
the cradle is very difficult to describe in just text or verbally.  You need to speak with your coach (I assume you are looking to start playing) and get him to show you as he teaches.  but at a basic level the cradle is accomplished by holding the stick at the base with your off hand and approx. six inches below the head with your dominant hand.  then curl your dominant arm as if you are performing a standing bicep curl.  as you bring your arm up you should curl your wrist slightly.  then return to the starting position.  At all times you should strive to feel the ball pushing against your stick's pocket and not against the sidewalls.  it should not bounce around.  the cradle does not need to be fast or hard, it needs to be smooth and fluid.  then learn to do the same motions in your opposite hand.
360723
Use a prism like Newton did.
459454
Try Roboform, its the best. You can get it free from www.download.com.
11475
Well it is pretty easy to build a simple motor. There are instructions at this website.
608142
Some ideas:\n\n-a pendelum\n-a windmill\n-a model roller coaster (this demonstrates all three of newton's laws)\n-a car that pushes off a rubber band and goes forward (this demonstrates newton's third law of motion)\n-a model car that crashes into some cardboard (this demonstrates inertia)\n-push different sized toys with different masses off a rubber band\n-throw a ball at an object so that it moves (this demonstrates newton's second law of motion)\n\nThe possibilites are endless! you can also combine more than one of these ideas.
943665
this is impossible to answer, there are many shapes that could be made this way.  do you have any other information like right angles or angles at corners?
687722
umm..make one yourself!?
472090
Try http://en.wikipedia.org/wiki/Isaac_Newton
807454
search scopes trial on this web site.\nhttp://creationontheweb.com
874694
I'd recommend Playdough (or similar clay material) as the basis.  You can make your own "dough" or buy some.  If you use different color Playdough, you can easily distinguish the parts of the cell.  And you can add paper flags glued to toothpicks to label the different parts (or make a color-coded legend).\n\nIf you find items that you want to have represent cell parts (e.g. threads = filaments, marbles = mitocondria, pipe cleaners = centrosome, etc.) you can just stick that into your clay model.  For things you can't find items for, just make them out of different colored clay. But I think clay as the basis for the cell model makes a lot of sense.
198825
Sticking by the rules you specified;\n\nConstruct an inclined channel (ramp) where the 1 kg (2 lbs)weight (hopefully a metal ball) falls and accelerated by gravity. place the car that will catch and hold the ball at the end of the ramp. The falling ball's inertia will propel the car almost equal to its speed and may reach more than 1 meter on a flat even surface, design the car with low center of gravity, with less than half the weight of the propellant ball (weight) as a consideration.\n\n************* \n\nAh, New data acquired --- resolution: same application of inertial force using a rigid pendulum.\n\nConstruct a pendulum with the required height putting the fulcrum point at 10 cm directly above the floor of the car, giving you a swing radius of 10 cm from top to bottom, use a cardboard/plastic tube (shute) to carry the pill bottle but loose enough to set it free after a sudden stop once it reaches the bottom where the position of the pill bottle is parallel with the floor of the car. This configuration may not give you as much distance relying on gravity alone but may be able to get 1 meter if conditions are favorable, pertaining to weight of car and means of motion (wheel and shaft should be well oiled for free-wheeling), relevant to weight of falling object, unless you are allowed to spring load the fulcrum. You can put the fulcrum as part of the car (but it will add more weight/ but you wont need the shute, all components will be integrated), or as a separate launcher (which you will need the shute). make sure the center of gravity on the car is low for stability. when integration of all component is involved make the wheel base equally wide as 10 cm. If just for the pill bottle, just narrow enough to carry the bottle.\n\nmy idea: http://server4.pictiger.com/img/124010/other/1-kg-inertia-car.jpg\n\nInnovation is part application and part logical creativity. Isn't science great!\n~meow
682917
Good Luck\nhttp://aresgalaxy.sourceforge.net/
254588
If you want to do it long hand the following link gives detailed instructions.\n\n\n\n\nhttp://www.nist.gov/dads/HTML/squareRoot.html