Do bends in a wire affect its electrical resistance ?
Pierre Charbonneau, Eng.
from Jonquière, Quebec, Canada
Is there actually a strobe light on the International Space Station? I saw in the sky a sequence of...
from Prince George, BC Canada
I need to know what happens to wood (softwoods, hardwoods and kiln dried woods) when they are...
Why do we have five fingers? My idea is that one of nature's themes is "having enough." It's like a...
from Los Angeles
Why do dry cell batteries (rechargeable) need to be fully drained before they can be recharged?
At what speed does the world's slowest living thing travel? And what is the world's slowest living...
How can I find out whether it takes more effort (work by pump) to increase the air pressure in a...
When rockets were sent to Jupiter, did scientists get any readings?
Does Jupiter have a solid...
from Andradas-MG- Brazil
When you squeeze out a piece of orange-peel on a flame, it catches fire violently. Why? What is...
Are light and matter the same thing? Can you get matter from light?
Is it true that bats don't pass their food through but vomit it up while they are hanging upside...
What would make it possible for a man to move through solid objects? Is it at least in theory...
Does antimatter's gravity have the same properties ordinary matter?
Is gravity considered to be one of the forms of energy such as electricity, heat, light,...
I am currently researching how sugar (sucrose) reacts with various chemicals. I am particularly...
Is a nerve impulse considered an electric current since it induces a magnetic field?
How would Giant Pandas being killed off affect my life?
Is it possible to test for, and diagnose, mitochondrial disorders, after death? How? Can this be...
We want to know, when we burn NaCl, what happens to Cl?
How do antiperspirant products work? Could you use one on your chest to prevent sweating?
I was wondering how I could test for things like heavy metals. How can I do that without paying for...
Russell J. Wells Jr.
from Dearborn Hts., Mich.
Why is the efficiency of most all lasers limited to .1% to 30%? What are the limiting factors? What...
from lahore, pakistan
There is a controversy among my collegues that during agarose gel electrophoresis the band that...
Grade One, Chesterville Public School
from Chesterville, Ontario
What do you feed baby praying mantises? We found a mother praying mantis who laid an egg sack on a...
How do you calculate potential energy for an object which is sitting on the floor? PE=mgh, which...
What is the structure of chicken bone?
from Bergen, Norway
I came across a "water powered clock", and it can supposedly generate power from water alone. My...
Is there any magnetic shielding material which is not itself attracted by a magnet?
I have a few questions regarding Space-Time that have always confused me. I would very much...
I am interested in finding more information on how to detect the presence of arsenic in the foods...
from the Internet
What makes classifying dogs in breeds different from classifying humans in races?
I thought that...
My whole family plays hockey. We have frequently discussed how long of a shift should be and with...
If body temperature is 98.6 degrees, why does 98.6 degree water feel hot when you place it on your...
from Mill Valley, CA, USA
This came up during a homeschool astronomy lesson: Why does the back of the Moon not have large...
Why does HIV form resistance to ARV so quickly? HIV reproduces itself millions and millions of...
How long would a single molecule of a radioactive element last?
If the half-life of U-235 reduces...
An article in the National Geographic magazine describes the Big Bang event as linear in form. Does...
Light cannot escape from a black hole, because of the black hole's mass. If this is true, then...
Is the interstellar space between the galaxies completely empty? Not even a single star or a nebula?
from West Harrison
How do you get rid of duck weed in a pond?
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