When a baby is formed it starts out as one cell then splits and reproduces and forms perhaps...
What's a gathering of frogs called? What's a gathering of toads called?
Why does uracil replace thymine in RNA?
How would one maintain a bacterial culture without having to transfer cultures on a regular basis?
How do we explain the difference between cells that can repair damaged tissue, such as skin cells,...
from Dayton, Ohio
I have been trying to find formulas for simple auto windshield washer fluid. Can't find anything....
Lee Ming Fei
Why does chalk, a cylinder, always break into three pieces when it falls, and not into two or four...
Do all planets and stars rotate on themselves, and do we know why?
How do you know what size lobsters should be released instead of taken, in order to ensure the...
Does light exert force?
Karl-Alexander Berg Brisebois
Conservation of momentum can explain the exchange of a virtual photon between two electrons and the...
What is the difference between fats and cholestrol?
from Halifax, NS
I have a liquid crystal display screen computer monitor. I am looking for unbiased information on...
Do shells have nutrients in them? If so, what actually uses those nutrients?
from Hong Kong
1) Which of the following two options is more widely accepted by the scientific community? a)...
Supposedly in classical electromagnetism an accelerating charge radiates. If so, why? If so, then...
Is either Klebsiella pneumoniae or Serratia marcescens documented to be able to extract naked DNA...
from West Vancouver
(Re: E=Mc^2) Why does E/M=c^2 rather than simply c^1 (which is an altogether respectably large...
Why do batteries behave differently when kept at different temperatures?
In my science project a...
from Brisbane, Queensland, Australia
How did we (as a race) evolve eyebrows and eyelashes. The way I understand it is that to evolve...
Are there living beings which do not die?
from Berkeley, CA
I understand why magnetism is a relativistic effect, "caused" by Lorenz contraction effectively...
If light is made of photons, and photons have mass, and many photons of light are hitting the earth...
Is the air we exhale pure carbon dioxide? If not, then what is it?
from the Internet
Is the orbit of the moon around earth a perfect circle? If not, when is the moon closest to us? ...
At which age do the nasal bones and the mandible complete ossification?
How long does it take styrofoam to decompose? Are there chemicals that help to cause the...
A black hole is a central point the size of a pinhead where a huge amount of mass is concentrated....
from Pune, India
1. I would like to know when was Hubble's constant discovered / invented?
2. How many times it...
Why is Isobutane ( C4H8) a gas at 25 C and Dodecahedrane ( C20H20) a solid at 25 C?
from Denver, CO
When eating spicy foods, the tongue and lips can get a burning sensation. Why don't the insides of...
I've been doing a science fair project testing the effectiveness of Lactaid(TM) lactase. From a...
What chemical reaction takes place when you use henna to tint skin? Is it possible to extract the...
from Chilliwack, Canada
IF my blood type is A negative what are my parents' blood types? What does it mean to have negative...
What is immunofluorescence analysis, what basic materials are used, and how long does it take to...
Is it harmful to inhale sulfur which has been heated?
from Morris Plains, NJ
Why is the helical content higher in gelatin with higher molecular weight. In other words, it seems...
from Delhi, INDIA
What are the ways in molecular biology to show confirmation of hybridization on a solid surface for...
Why do we yawn when we see someone else yawn? Why is it contagious?
Why do wet objects shine?
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