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Q & A: Physics Questions? Ask the Van

Physics Questions? Ask the Van

Question of the Day

"My husband went to a house that had been froze up since the middle of December. Every thing in this house was froze. Pipes and toilet and any thing that could freeze was froze. Sitting on the table was an unopened bottle of water which was still in liquid form .How can water in pipes and in the toilet freeze and not this bottle of unopened water?"
-Nadine Shampine (age 63)

See the answer

About Us

7812 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!