askscience

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Are there any retail stores in the US (CA) where you can purchase Petri dishes?	1
How does novacaine and lidocaine actually block the pain response from the body? Bonus question: Since our physical nervous system does not spread over every inch of our body, how do we feel pain across our skin?	1
Why did Asians grow up largely lacking earwax or strong BO (requiring deodorant) compared to Europeans?	1
Not my normal askscience posts - where can I find an abundance of animated videos that show the operation of biology on the cellular level?	1
Do Native Hawaiians and Samoans have a genetic difference in bone structure/mass that makers then relatively bigger? Or are they relatively bigger due to diet? Culturally it seems they tend to be stockier, and I wonder if that can be attributed solely to culture or if their bones are larger.	1
How does the common cold (bacterial) differ from a viral inflection in terms of how it invades the body and causes sickness?	1
How technically, does bacteria from a common cold affect your system and cause you to get sick? How does this differ from a virus?	1
How, cellularly, do vitamins (A,B,C,D,E) affect the body once entering the bloodstream?	1
I microwaved a glass of coffee with a piece of plastic wrap over the top. When I took it out, the plastic wrap was concave. Seems as though the air pressure inside the glass was lower than room temp. But the glass was hot! What is happening here?	1
What is it about marijuana that makes it so addictive and difficult to return back to baseline when taken too long?	1

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