from Northampton England
How do you measure the pH of soil? How do you make up a solution of different pHs? What is the best...
from New Delhi
Why are the lipids found in the human body mostly even numbered?
from Mill Valley, CA, USA
This came up during a homeschool astronomy lesson: Why does the back of the Moon not have large...
Loubelle I. Depita
from Koronadal City, South Cotabato, Philippines
Why does Nitric Acid stain the human skin yellow?
I have been doing an experiment in school and I don't understand why the following happens. When we...
from Bergen, Norway
I came across a "water powered clock", and it can supposedly generate power from water alone. My...
What is the name of the most recent planet discovered, and where is it?
Is there really a tree in Tasmania called the Huon Pine that is 20,000 years old?
from the Internet
Are there any Canadian scientists that have contributed to the field of bioremediation?
from Beaufort, SC
Are all non-toxic claiming products really non-toxic? And is there any simple way (such as a way...
Are there foods to eat which lower/reduce harmful cholesterol levels, or is this achieved by...
How do I estimate the mass of an object when I know its volume and nothing more? For example, how...
This is an archery question. Does an arrow fly faster in the hot or cold? or... Does the hot or...
Can you give me some information on the reaction of ascorbic acid and N-Bromosuccinimide? How do...
The first four facts below suggest that the earth should be getting heavier and heavier - but it...
I'd like to model magnetic fields on my computer, but I can't find any software. Can you point me...
This question is in regard to ‘vintage Lucite purses’ that sometimes end up having an odor...
What are the intermolecular forces for polycrystalline solids? And what is the geometric shape? I'm...
from Ottawa, Ontario
Why do ceramic magnets lose their strength in extremely cold temperatures like dry ice?
from Oldsmar, florida
Why does a magnetic field in the form of a bar magnet effect the movement of a planaria? Does it...
from Boston, MA, U.S.A.
Where in the universe are we? We seem to know the dimensions of the Universe; so does it have the...
Why don't ordinary Silicon diodes emit light like LED's?
Has absolute zero (0 K) ever been reached a laboratory?
Why is blood salty?
I recently read a book on the big bang, and it said that protons and neutrons are made up of 3...
from Split, Croatia
What happens when electrons pass through a magnetic field at a velocity near lightspeed?
Is calcium carbonate (ground limestone) biodegradable? Will it break down during composting? I want...
Bruce MacKinnon, CET
from Kitchener, Ont
Is polyol used in the reaction of isocyantes (methylene diioscyante) the same compound as Glycerol?
from Hilton Beach, Ontario canada
I have been diagnosed with multiple scleroisis recently and I also have severe psoriasis. I've...
I'd like to know what happens to radio waves once they have been emitted. Do they live forever?...
Wilma de leon
What is the reaction between a chitin--the polysaccharide intermediate between protein and...
from Lansing, MI
How do "Fire Retardents" retard fire? If the flash point of any given material never changes? I...
from Bathurst, New Brunswick
Are the pores of the cell membrane composed of protein molecules or are they simply holes in the...
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,...
from Winnipeg, MB
What is the distance from the sun for each of the elements in the periodic table where they would...
Why does insulin resistance induce weight gain?
I don't understand because insulin is suposed to...
from Brisbane, Australia
Is it true that no mass can travel at the speed of light? If this is true, as you are nearing the...
Who was the first scientist to study light?
What i don't understand is why the intensity of the electric field is 0 inside a charged (empty on...
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