Recent content by Arjan.

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    Undergrad Can Gasoline Vapor in Sewers Lead to Explosions?

    Hi, i need to know something about the explosion risk of gasoline. I have to assess the risks of gasoline leaking into a sewer. They say the vapor can cause explosions. I looked up some facts, but i can't find the answer. 1) Here's the data temperature: 2 to 10°C explosion boundaries of...
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    Do proteins denaturate at 10°C?

    Hi, i need to know if the proteins denaturate when cooled from body temperature to 10°C (50 F). To the best of my knowledge as a biologist, our proteins denaturate at 42°C or higher, but not at relatively low temperature, though i am not sure of the latter. Who can enlighten me?
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    So the question is: what is the optical density of the original sample?

    The problem: how to determine the optical density of a diluted sample Hi, i work on algae and bioenergy and i have a question about the OD. I have to determine the optical density of about 400 samples. Some samples however are too "dense" for the photospectrometer, that is they have an optical...