Wilma de leon
What is the reaction between a chitin--the polysaccharide intermediate between protein and...
How do touch lamps work? If one person touches the touch pad and someone else taps his other hand,...
Ernesto C Ignacio
from Malabon City, Philippines
I understand that in some countries it is prohibited to use industrial acetic acid to make table...
I'd like to know what happens to radio waves once they have been emitted. Do they live forever?...
What can I use to block magnetic lines of force? I have been working on an rf transmitter project...
In 1828, Friedrich Wohler, a German chemist attempted to make an inorganic salt, ammonium cyanate,...
According to my family, a comet streaked through the sky the morning one of my uncles was born. His...
Is there really a tree in Tasmania called the Huon Pine that is 20,000 years old?
Is it possible for a singularity to form outside a black hole?
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...
What is the difference between animal hibernation and a human coma? These states appear similar,...
from Thunder Bay
Last spring and summer there were millions of army worms creeping all over everything. Maybe worse...
What Satellite Galaxy is moving fastest toward the Galactic center? What Satellite Galaxy is moving...
from the Internet
What makes classifying dogs in breeds different from classifying humans in races?
I thought that...
What happens to a compass when it is held exactly on magnetic north? Does it just spin?
Why is blood salty?
This question is in regard to ‘vintage Lucite purses’ that sometimes end up having an odor...
Who was the first scientist to study light?
Is there a better alternative that has yet to be discovered other than zinc to be used in a battery?
from Castro Valley
Can a fast breeder reactor like the famous Candu series of Canadian designed fast reactors be...
When a ball is rotated at the end of a string in a horizontal circle (parallel to the ground) what...
How can I tell the difference between Zinc and Aluminium metal?
Why don't ordinary Silicon diodes emit light like LED's?
from Lansing, MI
How do "Fire Retardents" retard fire? If the flash point of any given material never changes? I...
from Rahim yar Khan, Pakistan
What is vacuum ? How is it created because if we remove the air then the instrument in which we...
The first four facts below suggest that the earth should be getting heavier and heavier - but it...
from New York
If hydrogen peroxide is bad for cells, why is it good for cuts? Also, how is it a good treatment...
How do we explain the difference between cells that can repair damaged tissue, such as skin cells,...
What are the intermolecular forces for polycrystalline solids? And what is the geometric shape? I'm...
Does mercury in its gas form act the same way as air - I mean if heated, does it rise?
from Port Orchard, Washington, USA
Do magnets become less massive over time? It requires energy to hold a magnet on the refigerator...
Why does the Original Coke sink into the water, when Diet Coke floats in the water?
Can you explain how those bright sticks work, the ones that glow for hours with a snap and a shake?
Bruce MacKinnon, CET
from Kitchener, Ont
Is polyol used in the reaction of isocyantes (methylene diioscyante) the same compound as Glycerol?
from Nampa, Alberta,Canada
Why was Mars formed?
Can you give me some information on the reaction of ascorbic acid and N-Bromosuccinimide? How do...
What is the history of solar ponds and what trends are expected for solar ponds in the future?
from niagara falls
What is the ingredient used to make "hair gel" stiff and hold?
I have made a theoretical discovery in my studies. It concerns vibrations of frame of reference in...
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