What chemical reaction takes place when you use henna to tint skin? Is it possible to extract the...
from Brisbane, Queensland, Australia
How did we (as a race) evolve eyebrows and eyelashes. The way I understand it is that to evolve...
How do you know what size lobsters should be released instead of taken, in order to ensure the...
from Halifax, NS
I have a liquid crystal display screen computer monitor. I am looking for unbiased information on...
Is either Klebsiella pneumoniae or Serratia marcescens documented to be able to extract naked DNA...
How would one maintain a bacterial culture without having to transfer cultures on a regular basis?
What is immunofluorescence analysis, what basic materials are used, and how long does it take to...
Karl-Alexander Berg Brisebois
Conservation of momentum can explain the exchange of a virtual photon between two electrons and the...
Are there living beings which do not die?
Supposedly in classical electromagnetism an accelerating charge radiates. If so, why? If so, then...
How long does it take styrofoam to decompose? Are there chemicals that help to cause the...
D. Andrew White
Do different isotopes vary slightly in chemical properties? Or are they the same? i.e. are the...
from Chilliwack, Canada
IF my blood type is A negative what are my parents' blood types? What does it mean to have negative...
At which age do the nasal bones and the mandible complete ossification?
from Hong Kong
1) Which of the following two options is more widely accepted by the scientific community? a)...
Do shells have nutrients in them? If so, what actually uses those nutrients?
from Delhi, INDIA
What are the ways in molecular biology to show confirmation of hybridization on a solid surface for...
A black hole is a central point the size of a pinhead where a huge amount of mass is concentrated....
Loubelle I. Depita
from Koronadal City, South Cotabato,Philippines
Why does nutrasweet or aspartame loses its effectiveness in cooking or in processes requiring...
Why can't spruce trees compete with maple trees in more southern forests? What advantages do the...
Why did Canada pull out of the ITER fusion project, and what, if any, research is Canada...
from Denver, CO
When eating spicy foods, the tongue and lips can get a burning sensation. Why don't the insides of...
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...
I would like to know the chemical compostion of the venom in a yellow jacket wasp sting, the dosage...
from Auckland, New Zealand
Is there an effective and affordable way to kill weeds on an organic basis? (i.e. vinegar?)
In dealing with bacterial resistance, should doctors use the strongest antibiotics now to kill off...
from Pune, India
1. I would like to know when was Hubble's constant discovered / invented?
2. How many times it...
If light is made of photons, and photons have mass, and many photons of light are hitting the earth...
from Dayton, Ohio
I have been trying to find formulas for simple auto windshield washer fluid. Can't find anything....
At what speed does the world's slowest living thing travel? And what is the world's slowest living...
How does sugar conserve food?
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'm doing a science experiment with magnets and was wondering, do magnets lose their strength over...
Why is Isobutane ( C4H8) a gas at 25 C and Dodecahedrane ( C20H20) a solid at 25 C?
Jerry E. Allen
Is it possible to freeze water in a vacuum? Is there a chart that shows water temperature vs....
I heard there was a woman named Rosy involved in the discovery of the DNA double helix. Who was she...
Do all planets and stars rotate on themselves, and do we know why?
Is it harmful to inhale sulfur which has been heated?
My grade 10 biology teacher tells us that blood comes in different shades of red (dimmer and...
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