from Cherry Hill
I have a question regarding starfish, or seastars, whichever you would like. Is there a species of...
Atalinder S. Bindra
Is it possible to reach a black hole? What is the distance of the nearest black hole from earth? Is...
Can you tell me whether it would be possible to launch a spacecraft into orbit using a giant...
This question is in regard to ‘vintage Lucite purses’ that sometimes end up having an odor...
I'd like to know what happens to radio waves once they have been emitted. Do they live forever?...
How do touch lamps work? If one person touches the touch pad and someone else taps his other hand,...
Why is blood salty?
What happens to a compass when it is held exactly on magnetic north? Does it just spin?
I recently read a book on the big bang, and it said that protons and neutrons are made up of 3...
Since there are no molecules within the vacuum of space to allow heat transfer, how can the air...
How do I estimate the mass of an object when I know its volume and nothing more? For example, how...
Wilma de leon
What is the reaction between a chitin--the polysaccharide intermediate between protein and...
Are there foods to eat which lower/reduce harmful cholesterol levels, or is this achieved by...
from Lansing, MI
How do "Fire Retardents" retard fire? If the flash point of any given material never changes? I...
In 1828, Friedrich Wohler, a German chemist attempted to make an inorganic salt, ammonium cyanate,...
Has absolute zero (0 K) ever been reached a laboratory?
How far is Pluto from the sun, and will we ever be able to travel to other planets, besides the...
Is it possible for a singularity to form outside a black hole?
The first four facts below suggest that the earth should be getting heavier and heavier - but it...
from Thunder Bay
Last spring and summer there were millions of army worms creeping all over everything. Maybe worse...
Does mercury in its gas form act the same way as air - I mean if heated, does it rise?
Who was the first scientist to study light?
What are the intermolecular forces for polycrystalline solids? And what is the geometric shape? I'm...
Is there a better alternative that has yet to be discovered other than zinc to be used in a battery?
from Rahim yar Khan, Pakistan
What is vacuum ? How is it created because if we remove the air then the instrument in which we...
Why don't ordinary Silicon diodes emit light like LED's?
How can I tell the difference between Zinc and Aluminium metal?
from Castro Valley
Can a fast breeder reactor like the famous Candu series of Canadian designed fast reactors be...
from Port Orchard, Washington, USA
Do magnets become less massive over time? It requires energy to hold a magnet on the refigerator...
When a ball is rotated at the end of a string in a horizontal circle (parallel to the ground) what...
How do we explain the difference between cells that can repair damaged tissue, such as skin cells,...
Can you explain how those bright sticks work, the ones that glow for hours with a snap and a shake?
from New York
If hydrogen peroxide is bad for cells, why is it good for cuts? Also, how is it a good treatment...
What are the quantum numbers that are involved in the distinction between matter and antimatter? I...
Bruce MacKinnon, CET
from Kitchener, Ont
Is polyol used in the reaction of isocyantes (methylene diioscyante) the same compound as Glycerol?
Can you give me some information on the reaction of ascorbic acid and N-Bromosuccinimide? How do...
Why does a rare earth magnet fall slowly in an aluminium tube but it falls really fast when I toss...
from the Internet
If two magnets are in contact with each other or close proximity to each other either repulsing or...
I'm doing a science project and my topic is about the speed of sound. I was wondering if you...
Why does the Original Coke sink into the water, when Diet Coke floats in the water?
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