Science & Mathematics - 5 September 2007

I've seen flashlights that are powered mechanically(A mechanically powered flashlight is one of several varieties of flashlights that do not use batteries, but rather depend on mechanical movement by the user to generate enough electrical current to power a miniature incandescent bulb or light-emitting diode.). is it possible to create this to make a fan instead of light?

2007-09-05 02:06:58 · 6 answers · asked by melviely_mj 2 in Engineering

2007-09-05 02:01:17 · 2 answers · asked by squee 2 in Mathematics

i live in houston tx 77075

2007-09-05 02:01:10 · 2 answers · asked by Anonymous in Weather

2007-09-05 02:00:04 · 13 answers · asked by nyghtmare3 1 in Earth Sciences & Geology

I asked my french roommate for some aspirin and he gave me Efferalgan made by Bristol-Meyers Squibb. I can't find any information about this and the whole package is written in french. Can anyone tell me if this aspirin or something similar?

2007-09-05 01:55:35 · 0 answers · asked by Melinda S 2 in Medicine

I would just like to confirm if it is possible to convert waste heat energy to electricity... if possible, how?

plis, i rily nid help...

2007-09-05 01:52:47 · 3 answers · asked by blakken101 2 in Physics

I live on the Mississippi Gulf Coast.. last night i had my front door Open to where i could look out my glass door... And i noticed this HUGE thing flying... at first my boyfriend thought it was a bad... then we looked closer, it was a moth the size of a bird!!!! And it was yellow with some markings on it... We noticed that it had dropped these little yellow beads on the outside of our house, on the wall.. I picked one up with a napkin and they are just little hard beads.. i tried to crush it with my fingers and couldnt... its very hard and small, the size of a B.B. for a B.B. Gun. Iv never seen anything like this..any ideas?

2007-09-05 01:52:23 · 3 answers · asked by MandiGurl M 2 in Zoology

changing ideas of scientists about the evolution of the platypus

2007-09-05 01:50:46 · 2 answers · asked by Anonymous in Biology

changes such as ozone layer depletion, global warming, greenhouse effect etc.

2007-09-05 01:44:55 · 3 answers · asked by -'eLabOraTe'- 1 in Biology

My question is: is there anyone out there that can perform telekinesis? Only serious answers please, no answers simply saying "telekinesis doesn't exist" or anything to that affect.

2007-09-05 01:41:26 · 10 answers · asked by Anonymous in Parapsychology

This is a weird math problem. i'm trying to help my kid do her homework, but it's been 15 years since I've done these.

2007-09-05 01:31:46 · 4 answers · asked by nunyan 2 in Mathematics

how is it work

2007-09-05 01:31:41 · 1 answers · asked by Anonymous in Physics

Trees help keep the planet _________
Global warming affects the _________

2007-09-05 01:28:15 · 8 answers · asked by Anonymous in Earth Sciences & Geology

2007-09-05 01:27:51 · 1 answers · asked by Anonymous in Geography

I need it exactly today

2007-09-05 01:15:52 · 5 answers · asked by Agnes 1 in Zoology

I'm 11 so I'm not smart in math but I'm smart in other classes. its a long story and these questions are giving me a hard time.
Question: Three people can pick six baskets of apples in one hour. How many baskets of apples can 12 people pick in one-half hour. Just tell me how to solve it.

2007-09-05 01:15:18 · 13 answers · asked by Charles F 2 in Mathematics

2007-09-05 01:14:54 · 2 answers · asked by zebbie g 2 in Zoology

2007-09-05 01:10:14 · 5 answers · asked by Anonymous in Biology

I read an article the other day about a hole that had been discovered on Mars. It was about the size of a football field and appeared to be the opening to a much larger cavern. The HiRise took pictures of it. Is this true or is it a hoax.

2007-09-05 01:03:31 · 7 answers · asked by justask23 5 in Astronomy & Space

fourier seres and fourier transforms

2007-09-05 01:00:01 · 2 answers · asked by raghu n 1 in Engineering

Pls. answer quickly bec. it is my assign. TNX

2007-09-05 00:52:33 · 1 answers · asked by Gil 1 in Biology

2007-09-05 00:47:10 · 31 answers · asked by G.xi 1 in Astronomy & Space

Usually, this would be an easy question to answer, but recently ive heard people relate energetics and even witchcraft to it, along with spiritual shapeshifting.

Is paranormal something that deals with only Apparitions and spirits, or is it more?

2007-09-05 00:46:01 · 8 answers · asked by Anonymous in Paranormal Phenomena

_________ energy comes from things besides fossil fuels

2007-09-05 00:44:35 · 7 answers · asked by Anonymous in Astronomy & Space

Did anyone see Paranormal Egypt last night?. I thought it was a little slow & boring...

2007-09-05 00:37:08 · 7 answers · asked by Anonymous in Paranormal Phenomena

when you have a green light it makes the room appear green, and so on blue = blue........ so why dosnt a black light bulb make a room darker than the outside? this would be great for my afternoon sleeps! and yes i did paint a light bulb black. i dont get it.

2007-09-05 00:29:37 · 12 answers · asked by Anonymous in Physics

2007-09-05 00:27:53 · 1 answers · asked by saurabh d 1 in Chemistry

2007-09-05 00:26:58 · 9 answers · asked by Anonymous in Mathematics

A gas undergoes a process that starts at a pressure of 25 psia and an initial volume of 4ft(cubed). Work is done on the gas in the amount of 12 Btu.

2007-09-05 00:24:58 · 2 answers · asked by Anonymous in Physics

According to wikipedia (http://en.wikipedia.org/wiki/Dyno_torch), a mechanically powered flashlight (or dyno torch) has a device called the flywheel that can store energy. From this, the user squeezes a handle to operate a small dynamo which supplies an electrical current to a miniature incandescent bulb for it to operate.

My questions are:
1. How much energy does it store in the flywheel?
2. How much energy do we produce every time we sqeeze the handle?
3. Is possible for this mechanism to generate enough energy (with a few modifications if necessary) to make a mechanically powered hand held fan (ex: http://a248.e.akamai.net/f/248/5462/2h/amplestuff.safeshopper.com/images/w0fks5v.jpg)?

Much thanks!

2007-09-05 00:16:38 · 4 answers · asked by Lena 2 in Engineering