My science teacher set me this homework, please, I need your advice....'You are the sole survivor of an aeroplane crash in the Himalayas, it is freezing but there is bright sunlight. You desperately need to defrost a Mars bar to survive. You have: a polished piece of metal, a piece of string, a sheet of white paper, and a frozen Mars bar. How will you survive?!'
2007-03-25 05:09:38 · 8 answers · asked by AJGeniusz 2 in Science & Mathematics ➔ Other - Science
Thawing the mars bar - the easiest thing to do is put it next to your skin. Failing that, make a parabolic reflector fromthe metal and or paper. The string could hold the mars bar atthe focus.
You might consider cuttingthe mars bar with the metal to make it last a few days. Thats better than eating it all at once.
If your metal is bendable, it could get enough heat from the sun to light the string, if you ned to signal and can burn the paper. There shoudl be plenty of things around you to burn from the wreckage. Ifthe metal is big enough, it could form a solar heater, with you at the centre.
But the most useful thing to do with the metal is to signal the search aircraft by reflecting sunlight at them, or, if its misty, beat it to make a sound and attract attention.
Try not to burn the string or paper unless you are attracting attention or using it for tinder to create a sustainable fire. Another use is to make sunglasses with them - you don't want snow blindness.
If you have a pen, start writing a letter of complaint to the airline.
2007-03-25 12:36:06 · answer #1 · answered by Anonymous · 2⤊ 0⤋
Tie the Mars bar with a string, hold it between the polished metal piece which is directed to the sunlight and the white paper to redirect the reflected light which goes beyond the mars bar back to the bar.
2007-03-25 05:24:20 · answer #2 · answered by Swamy 7 · 1⤊ 0⤋
You put the metal piece at a certain angle to direct it to the mars bar. You tie the string to the mars bar and you cover it from white paper to take the cold out (white attracts cold). Now you hold the string and you direct the sunlight to the mars bar.
2007-03-25 05:17:20 · answer #3 · answered by Mugen 1 · 1⤊ 0⤋
Put the paper on a dry place. Put the metal on the paper and the mars on the metal.
Or, as an ex-soldier, I would have wrapped up the mars bar in the metal sheet and wrapped that up in the paper, tied up with string and shoved it in my pants gusset! The warmest part of the body, right up into the crotch! The heat would be transferred throug to the bar and when you took it out to eat it the paper etc would give you time to eat it before it froze again!
2007-03-25 05:30:13 · answer #4 · answered by R.E.M.E. 5 · 2⤊ 0⤋
Yeah, all of the equipment sounds a bit useless... I mean, you can reflect the sun onto the mars bar, sure- you know, the reflected sun off the snow can be intense enough to give you sun burn...
it'd defrost a lot faster if you just hold it in your armpit though... or just eat it frozen- has your teacher not heard of Mars icecream?
2007-03-25 05:52:34 · answer #5 · answered by Buzzard 7 · 0⤊ 0⤋
All you need is the metal. Hold the bar in your hand, and focus the metal to reflect the sunlight onto the bar. Hold it there for a while, and it should defrost, or even melt!
2007-03-25 05:15:17 · answer #6 · answered by Ronald McDonald 2 · 1⤊ 0⤋
I don't know what the rest of the stuff is for, but i would put the mars bar under my oxter and let my body heat defrost it.
2007-03-25 05:14:55 · answer #7 · answered by Anonymous · 1⤊ 1⤋
I'd turn to cannibalism. The mars bar doesn't have any real nutrients.
use the metal to hack up the bodies with, and to cook them on. if you had a VCR, watch McGuyver for inspiration.
2007-03-25 05:18:55 · answer #8 · answered by dude 5 · 2⤊ 3⤋