2007-03-10 06:45:53 · 5 answers · asked by Anonymous in Education & Reference ➔ Homework Help
Can people generate enough electricity for their lives by their own effort?
Get a bunch of gym gear, or maybe just one exercise bike, and adapt it by hooking it up to a little generator lighting some bulbs. You will need tools and you'll need to do the maths first. A cheap exercise bike, of the sort that uses a friction belt to provide resistance, might be best - you just take the belt off and then find a way to hook up the generator
I reckon the alternator from a car is your generator. That plus some car headlight bulbs and some wire will do it - visit a scrappie.
See how long people can keep the bulbs lit up for. Choose the number of bulbs so that you can keep the bulbs lit for a few minutes max after which you should be completely exhausted - that will be enough of a challenge for your guinea pigs. You might find one headlight bulb is enough of a challenge on its own.
The conclusion: humanity depends on external energy sources; we can't survive without them. We're stuffed if we can't find an alternative to oil. That's a big conclusion these days.
2007-03-10 07:41:50 · answer #1 · answered by wild_eep 6 · 0⤊ 0⤋
Do a project on Gel Electrophoreisis
Its what the do for paternity tests.
And to tetst if psecies are closely related to each other
2007-03-10 08:17:30 · answer #2 · answered by n92305 4 · 0⤊ 0⤋
this site looked really helpful to me!
http://www.all-science-fair-projects.com/
2007-03-10 06:49:06 · answer #3 · answered by n b 5 · 0⤊ 0⤋
alas, my great knowledge as failed me
2007-03-10 08:04:41 · answer #4 · answered by Anonymous · 0⤊ 0⤋
wat about earth n space then u make the planets by using papermache n painting ova them.
2007-03-11 00:43:55 · answer #5 · answered by shilpa n 3 · 0⤊ 0⤋