from Morris Plains, NJ
Why is the helical content higher in gelatin with higher molecular weight. In other words, it seems...
In dealing with bacterial resistance, should doctors use the strongest antibiotics now to kill off...
What are the most recent theories about what existed before our big bang? Have there been one or...
If a sound is played to a person over a period of time, is there a way to work out (or to estimate)...
How does a lightstick work, and what are the chemicals involved?
Why are there no penguins in the Arctic, or anywhere in the Northern Hemisphere?
Why do wet objects shine?
How does sugar conserve food?
I heard there was a woman named Rosy involved in the discovery of the DNA double helix. Who was she...
Why do we yawn when we see someone else yawn? Why is it contagious?
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...
I've been doing a science fair project testing the effectiveness of Lactaid(TM) lactase. From a...
Which would hit a baseball further - a wooden bat or a aluminum bat? Why??
justine van der Werf
I have read that when oxygen is condensed to a liquid state, or indeed to a solid state it becomes...
What is the difference between animal hibernation and a human coma? These states appear similar,...
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...
Jerry E. Allen
Is it possible to freeze water in a vacuum? Is there a chart that shows water temperature vs....
In science fiction it is common to see P-P fusion, but my reading seems to indicate it is...
My grade 10 biology teacher tells us that blood comes in different shades of red (dimmer and...
In Chemistry today, we learned that when HCl is ionized in water, the H2O becomes H3O+, because of...
Can you tell me what the exact pH of the acid in our stomach?
If neutrinos have mass, as now seems to be the case, they cannot travel at the speed of light …...
from Andradas-MG- Brazil
When you squeeze out a piece of orange-peel on a flame, it catches fire violently. Why? What is...
Can air in the pleural cavity cause the lungs to expand more fully than they normally would?
At what speed does the world's slowest living thing travel? And what is the world's slowest living...
What kind of weather is on Mercury and Saturn? Does it rain or snow on these planets?
from Guwahati, Assam, India
Just like 1 mole of water contains Avogadros number of molecules and has the same mass as that of...
I have a physics paper here (don't worry i am not asking you for the answers!) that says each U-235...
Can absolute zero (0 degrees Kelvin or -273.16 degrees Celsius) be registered on a thermometer,...
When and how was the kaleidoscope made?
Are light and matter the same thing? Can you get matter from light?
How do scientists modify a virus so that it can be beneficial to a host cell? For example, during a...
I am doing some research on microarrays. I wish to know if mRNA's also have open reading frames as...
I've a question about solublity, water, and cyclohexanone. Water has a certain solubility in...
When does each organ system of the human body reach full maturity?
from lahore, pakistan
There is a controversy among my collegues that during agarose gel electrophoresis the band that...
How would Giant Pandas being killed off affect my life?
Does fabric softener affect drying time of towels?
How can I find out whether it takes more effort (work by pump) to increase the air pressure in a...
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