ok, does anybody have any ideas?\nIf you drop a raw egg 3 meters and you need to make some type of catching device and to make the catching device you can only use 50 straws and 2 meters of masking tape, how would you make the catching device?
205194
Last time I did this, we made a basket kind of thing an place the egg inside it. Remaing straws we pulled it to make it long n tied it to the egg(in the basket). Instead of throwing the egg, we slowly release the straws (straws act like a rope) so the egg reached ground safely. just make a simple catching platform in your case. Concetrate your resource for the rope and basket. \n\nThis exercise want us to think outside the box.Hope this help.
439200
Tom baked 4 batches of fairy cakes. Each batch consisted of x cakes. He put 3 cherries on top of each cake in the first batch, but couldn't resist taking off and eating 5 of them. He did the same again with the second batch, then the third, then the fourth! Meanwhile, Sarah baked 5 batches of fairy cakes, again with x cakes in each batch. She put 2 cherries on each cake and an extra two on the final one. She repeated this procedure with each of the batches. She managed to resist eating any at all! Tom and Sarah discovered that Tom's cakes had exactly the same number of cherries in total as Sarah's. Set up an equation for this.\n\nThen: \n\nNumber of cherries on Tom's cakes = 4(3x-5)\nNumber of cherries on Sarah's cakes=5(2x+4)\n\nBut number of cherries is equal so:\n\n4(3x-5)=5(2x+4)\n\nPhew!! I think that works!! Lol!
146461
I used to make them as well..if you hold up three of your fingers.. this is the shape to put the sticks to start...Then insert the other two sticks horizontaly between the other ones. There is also a kite version..but its very hard to describe how to make it.
2621
here's a site with pics that might give you some ideas:\n\n\nhttp://www.physics.usyd.edu.au/competition/comp1998/comp98.html
136327
Seriously, you are all thinking too hard. The answer is the easiest, and obvious one that your teacher is looking for. Trust me.\n\nHave the trap faced away from the candle. That is, that when it is sprung, the motion is away from the candle. Before setting the trap, tie one end of a 40in long piece of string to the arm, the other end to the candle. Then, set the trap and place it one meter away,(the string will now be tight). When the candle is lit, and the trap is sprung, it will jerk the candle away. The fast motion of the candle through the air will blow it out.\n\nSimple huh? Your teacher isn't looking for how fancy or inventive you can be, but how you can demonstrate simple efficiency. Or a lesson in common sense.
420893
Alternatively, you might way to try filling a 17" x 17" x 7" box with tiny chopped up styrofoam.  You might have to experiment with the size to make sure that the egg doesn't push all the way to the bottom and crack.  The idea is to maximize the size of the crater the egg will make without bottoming out, which means maximum distribution of transferred kinetic energy. Maybe you can have larger pieces at the bottom, and use sucessively smaller pieces towards the top of the box, to avoid having to experiment much with the sizes.
393444
hm.  Usually the key to a successful egg drop is utilizing air resistance - like, for example, getting a parachute to slow it down.  \nThat said - if you can't use anything parachute related (balloon, cloth, plastic baggie, paper, etc being off-limits) then I would recommend thinking about making some kind of inner/outer structure to absorb the shock of the fall - like build a box for the egg in the middle, then some space connected with toothpicks and then a larger box.... this is hard w/out drawing a diagram... think of those bubble within a bubble pictures.  \n\nThe problem with making it compact; over 8 meters it will hit the ground harder and without padding it will probably break. \n\nbut... make sure to make it balanced though because another common problem is having a good design and then the darn thing flips over as it sails down and the egg breaks.\n\nLet us know how it goes!
28610
This sounds so excessive! What a crazy teacher you must have. :)\n\nAlright - well...\nThe gravel is the easy part. Use the screen as a sift and hopefully the screen will be fine enough that none of the gravel will get through. \n\nNow the plan of action is dump the powder and salt in the water. [Which I guess will be done in Cup #1.] You'll filter out the powder. The salt will dissolve in the water, and you will evaporate the water later. The question is how to do this with what you have.\n\nI'm thinking the craft sticks are to hold up the funnel. Arrange them over the top of the cup [Cup #2] so that they make a triangle and see if it'll hold up the funnel. \n\nPut a filter paper in the funnel. Pour the mixture in and the powder will collect in the funnel. When you're done, take out that first filter paper and set it aside. Then set up your funnel in Cup #3 with the second piece of paper and filter the mixture a second time just to make sure you got all of the powder.\n\nI was trying to think of what the syringe could possibly be for, and the only thing I can think of is to take the salt-water out of Cup #3 and into the evaporation dishes.\n\nNo idea what the magnifying glass is for.\n\nBut the basic idea is that you sift out the gravel, mix the powder&salt in water, fliter out the powder, then dissolve the water.
154897
Hey cute BABy, don't bother asking this question again, 'cuz you already got the best solution.\n\n\n\nWait, did ya see MR. BEAN's picnic? Of course not 'cuz you are just a baby! Well... he used a bottle of juice to trap the fly and made a heavy shake. You can try it too.\n\n[the protein is not enough]\n\n\n\nLOL\n\n--- ► λ ◄
492658
Consider where the egg is strong.  An egg will support over 100 pounds in one direction and can be crushed by most people's hands in the perpendicular direction.  Set the egg such that it will not rotate inside the frame.  Try to secure the egg at the strong points.  Weight the frame so that it falls with the strong point down.  Use air resistance to encourage the placement in free fall.  I have seen soda straws used well.  I have also seen other means.  A crush-able device will absorb a lot of impact.  Give the egg time to slow before stopping.  Springs have also been used.  I guess you could surround the egg with springs inside a semi-crush-able container.  The crush would absorb a little while the springs got the rest.  Think: springs don't have to be made of metal.  Get creative.
92685
stick of dynamite.\n\nOk, I was just being silly, the other two ideas are good.\nA third way might be to create a whirlpool in the water.  I guess you could consider that a hole as well.
103816
I've never tried this or heard of it being done, so ask your teacher if it's safe to try this experiment. Take a balloon that has a good long neck on it and force it into the tab opening of an empty aluminum soda can. Then blow the balloon up as hard as you can so that it expands to fill the inside of the can and forces all the air out of the empty can (which really wasn't empty because it had air in it!) Continue to pinch off the neck of the balloon with your fingers so the air won't come out of the balloon. Now fill up a big tall kitchen pot or the sink half way and turn the aluminum soda can upside down completely into the sink or pan of water until the top of the can and pinched off balloon are partially submerged under the water. Now start letting the air out of the balloon gradually and watch the bubbles come to the surface of the water. When all the air is out of the balloon, it still has atmospheric air pressure inside it which keeps the can from being crushed by the atmospheric air pressure of the air in the room above the water level. So try to pull the balloon out of the soda can gradually while making sure to keep the soda can tab and balloon openings under the water level. Results? Does the can get crushed by atmospheric air pressure? Of course, we always have about 14.7 pounds per square inch of atmospheric pressure at sea level. You may have to experiment with different container types that your teacher says are safe to experiment with and one that had the globular shape of a blown up balloon would allow the air to be pushed out fully. You should wear good safety glasses in case any other container (like thin plastic) rather than the aluminum container shatters in the process of imploding.\n \nPS,  Using a wider mouth container, like the aluminum soda can with it's top sawed off, you could pull the balloon out quickly even when it was blown up with air. Don't cut yourself on any sharp metal edges though. The metal or plastic container material can't be too strong and thick because it can't collapse easily then under the force of the atmospheric air pressure.
388396
that is a tough one.. so heres my best idea\ncut off the bottom of one cup with scissors\nshred the rest of the cut cup into tiny little peices to make foam bits like they have in packaging boxes\nput some of this "packaging" foam into the botoom of the other cup\nput in the egg, and fill around it with more "packaging" foam\nput the circle cap on top and use the toothpicks through the sides to keep the cap in place.  make the toothpicks go from the outside of the cup, over the cap, and then back through the cup in a different place. you dont have to make the toothpicks go through the center of the cup. they can be on the sides as long as they hold on the cap.  the "packaging" foam should be smaller pieces towards the bottom of the cup, and bigger pieces towards the top.  hope this works..  Good Luck
387755
We did something like this in my physics lab with an Atwood machine.  It was a pully with weights hanging from it.  I can't exactly remember how it worked, but maybe this will inspire you.  We also did something with an air track and these two masses colliding and we'd see which one would go in which diretcion.  You need a nearly frictionless surface, like an air hockey table or ice slab.
28734
A classic, but great visual experiment is sucking a hard boiled egg into an erlenmyer flask.  It is done by using the principles of the kinetic theory of matter.  \nAnother cool project might be doing something with dry ice.  Find a place that you can get dry ice and do fun stuff with it, like create smoke, put bubble solution in water and then drop in dry ice to make bubbles that, when you pop, let out white smoke.\n\nAnother idea might be to do some cool colorful reactions.  Make some dye molecules or something.\n\nHope one of these ideas works for you.
326350
I did this in high school and aced it. First take a small cardboard box-about 6 inches for each side. Get about 20 to 30 rubberbands. With a stappler stapple the rubberbands inside the box long ways. This way when you drop your box it works like suspension your egg won't break. Test it out to make sure u have enough rubberbands though. Use clear tape to close the box up(packing tape). Even though you would think that you need alot of tape you  really don't.Remember you have to open the box to see if your egg breaks. The more tape the harder it will be to open. I saw people fail because they couldn't get their box open. Just make sure the box is sturdy. You can also put bubble wrap inside but more than likley you won't need it. Good Luck! I had so much fun with my eggdrop project, even decorated the box!!
633035
The simple answer is to have a mechanism for absorbing the impact of the fall. What to build depends on what materials you are restricted to.\n\nThere are several ways to go about it. Design a super-structure (the outside part) that crumples when hit. Suspending the egg is also a great idea (as was already suggested) If you can't or don't want to use a sock or stocking, using some kind of thick substance like gelatin would work well. Parachutes also work very nicely, I've seen some cool ones that worked like helicopters, spinning to slow down the descent. If you want a better answer I suggest posting whether you are restricted to certain materials.