from Auckland, New Zealand
Is there an effective and affordable way to kill weeds on an organic basis? (i.e. vinegar?)
Which would hit a baseball further - a wooden bat or a aluminum bat? Why??
Sylvain Koenig from the University of Lausanne (Switzerland)
Why would one person when he returns from travel at the speed of light have aged differently than...
Nathaniel P. Luga
from Cebu City
What chemical or chemicals that can desolve a strong concrete structure, and what is its mixture...
justine van der Werf
I have read that when oxygen is condensed to a liquid state, or indeed to a solid state it becomes...
I'm doing a science experiment with magnets and was wondering, do magnets lose their strength over...
When and how was the kaleidoscope made?
In science fiction it is common to see P-P fusion, but my reading seems to indicate it is...
In dealing with bacterial resistance, should doctors use the strongest antibiotics now to kill off...
If a sound is played to a person over a period of time, is there a way to work out (or to estimate)...
If neutrinos have mass, as now seems to be the case, they cannot travel at the speed of light …...
Can air in the pleural cavity cause the lungs to expand more fully than they normally would?
D. Andrew White
Do different isotopes vary slightly in chemical properties? Or are they the same? i.e. are the...
Loubelle I. Depita
from Koronadal City, South Cotabato, Philippines
Why are egg & milk used as antidotes for heavy metal poisoning and what other household remedies...
I would like to know the chemical compostion of the venom in a yellow jacket wasp sting, the dosage...
I have a physics paper here (don't worry i am not asking you for the answers!) that says each U-235...
What are the most recent theories about what existed before our big bang? Have there been one or...
I heard there was a woman named Rosy involved in the discovery of the DNA double helix. Who was she...
How does a lightstick work, and what are the chemicals involved?
In Chemistry today, we learned that when HCl is ionized in water, the H2O becomes H3O+, because of...
How does sugar conserve food?
from the Internet
How do you find the solubility of a substance?
My grade 10 biology teacher tells us that blood comes in different shades of red (dimmer and...
Why are there no penguins in the Arctic, or anywhere in the Northern Hemisphere?
Does fabric softener affect drying time of towels?
from the Internet
What would happen if the nucleus of an atom contained too many or too few neutrons, or even none? ...
I've a question about solublity, water, and cyclohexanone. Water has a certain solubility in...
What kind of weather is on Mercury and Saturn? Does it rain or snow on these planets?
When does each organ system of the human body reach full maturity?
Karl-Alexander berg brisebois
Heisenberg's uncertainty principle tells you that the mass of a particle multiplied by the...
I am doing some research on microarrays. I wish to know if mRNA's also have open reading frames as...
How do scientists modify a virus so that it can be beneficial to a host cell? For example, during a...
from Guwahati, Assam, India
Just like 1 mole of water contains Avogadros number of molecules and has the same mass as that of...
Jerry E. Allen
Is it possible to freeze water in a vacuum? Is there a chart that shows water temperature vs....
Can absolute zero (0 degrees Kelvin or -273.16 degrees Celsius) be registered on a thermometer,...
If we are making a perfume and we pour alcohol on an orange peel; why would the smell increase the...
How much does a person's head or skull grow every year? If I'm 16, how much would it grow until it...
How did neutrinos get to be objects of such low energy? Neutrinos are supposed to have been...
Why does an atom have neutrons and why does a specific atom have a limited amount of isotopes. For...
Can you tell me what the exact pH of the acid in our stomach?
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