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Ernesto C Ignacio from Malabon City, Philippines asks

I understand that in some countries it is prohibited to use industrial acetic acid to make table...

Kay asks

How can a star become small and dense enough to become a black hole? My understanding is that a...

Zambi Donburi from Brisbane, Australia asks

Is it true that no mass can travel at the speed of light? If this is true, as you are nearing the...

John D. Miller from Belmont, NH asks

I read that one can get a wider range of colors or shades if one uses the secondary colors:...

Nikhil Bhansali from New Delhi asks

Why are the lipids found in the human body mostly even numbered?

Andrew from Friendly asks

Who was the first scientist to study light?

Gabby Stec from Harrisburg asks

Why, specifically, do ferrite magnets gain strength in low temperatures?

Linda Sanders from Catonsville MD asks

Why does my coffee flow more freely from a to-go cup when there are two holes in the lid instead of...

Fern Marques from North Bay, Ontario asks

How can planetary angular momentum be tranferred from one body (Earth's rotation) to another...

Ernie Epp from Kenora, ON asks

Collision of galaxie clusters. In recent news reports that I've read it has been reported...

Ava Gabourel from New York asks

Who discovered High Blood Pressure and what year?

Ruben from Miami asks

I would like to know if there is any way to magnetize a 6x4x1/2 inch ceramic 8 non magnetized...

Leah W. from Duluth asks

What is the smallest living thing? What is the largest living thing?

shane from doylestown asks

How do scientists type your blood? How do they find out your blood type?

Jestin from India asks

Why rainbow is a bow?

Jessica Muller from Hamilton, Canada asks

I have heard that some one discovered that the atom is actually made up of sound waves. Is there...

John Crowe from Dublin asks

If I knew the centre of the universe and began to travel toward it, would I begin to decrease in...

Sarah Bosquet from Issoudun asks

I'm writing a science-fiction novel and need information about black holes, gravitation and...

Rudolf Olivier from Gauteng, South Africa asks

Water is made up of H2O. H will burn and O2 will burn. Why does water not burn?

Vasu from London,ON asks

Is it possible for a singularity to form outside a black hole?

Matt from Ottawa asks

Knowing the basic functions of magnets (dipoles, domaines...) I still don't understand WHY two...

C.L.Bridger asks

What chemical additives can be used to increase the octane rating of unleaded gasoline?

Paul Hosking from Brisbane, Australia asks

We are having a debate at work that we hope you can settle. The father of one of my workmates has...

Sherri from Baltimore asks

Does Henna (a plant based hair dye) contain any aluminum in its substances?

Ethan Heil from Salem, VA asks

I was reading about the tensile strength of certain fabrics, and was wondering what kind of...

Dawn from Santa Clarita asks

Is a seed a living thing? If so, how do you prove it? Is it living before you add water?

Aime Roger from Halifax asks

I am quite confused with temperature scales! i would like to know the link between the degree...

tina from the Internet asks

Will pea seeds germinate slower in a liquid substace other than water? why? I am conducting an...

Steve from Honolulu, HI asks

I'm interested in commerical lightsticks... I understand it is hydrogen peroxide and oxalate ester...

Michel Lamontagne from Edmonton asks

Why does sound get through a surface like a wall better than light? If you use a curtain they both...

Nijin from khd asks

I read in books that bees cannot identify the colour white. Then what will the bees see instead of...

Tony Kirk asks

Would sulfuric acid have a long term effect on an engine and eternal parts of an car if a bottle...

dave hack from brisbane asks

Nitrous oxide when used in motorsport is often classed as "forced induction" although is...

Amanda Gillis from Margaree asks

What are the intermolecular forces for polycrystalline solids? And what is the geometric shape? I'm...

Sharon Johnson from Tobermory asks

Can decomposing cedar wood chips or household compost cause environmental problems in surrounding...

Holly asks

What is the difference between a dolphin and a porpoise?

Cristina asks

How far is the Sun from Pluto? How long does it take for sunlight to travel to Pluto?

Jessia from Ontario asks

How high in the sky would Polaris the North Star be, as seen from the North Pole?

Matt from Pickering asks

How are genes located? For instance, Lap-Chee Tsui and his team of geneticists located the...

Kim Monin from Nepean, Ontario asks

I am trying to make natural beeswax into an ivory colour. Some people say they use natural dyes. ...