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Q & A: Physics Questions? Ask the Van

Physics Questions? Ask the Van

Question of the Day

"why heat tobe divided by temperature to get entropy?

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i had a dream my girlfriend cheated on me open girlfriend cheated on me with her ex
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i told my husband i cheated link i cheated on my husband with a woman
-v.hariharan (age 70)

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About Us

7491 questions have been answered online since 1998 by volunteers from the Department of Physics at the University of Illinois' Physics Van outreach program. We've tried hard to make this the most reliable physics Q&A site on the Web, but no site is perfect, as we explain on this note. Our Baloney feature provides examples of how shaky many other sites are.

If you'd like to ask us a new question, not already covered, please read our answering guidelines first. We try to answer as many questions as we can, but it's not always possible to answer them all. Questions from kids are especially welcome.

Although we recommend not using our informal site as a cited reference, students who are in a rush and can't find a more proper peer-reviewed source can check our citation information section.

Questions from kids are especially welcome!