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The Flying Circus of Physics is a book about curious events and effects of the everyday world. This site is an extension of the book.

Spotlight story for this month: Click on the title down below here
Secondary stories for this month: Click on "News/Updates" in menu at the left
Archived stories and links (hundreds): 1A, 1B, 1C, 1D, 1E, 1F1G, 2A, 2B, 2C, 2D, 2E, 3, 4, 5, 6, and 7
Index to this site and the book, not only individual terms but also collections, such as "Pub physics" and "Accidents" and "Stunts": A, B, C, D, E, F, G, H, I, J-K, L, M-OP-QR, S, T-Z

The second video of the new Flying Circus video series has now been posted at the following site. This one is about hanging spoons and bottle caps from your face. I thought about also using cats but decided against it. New videos will appear about once a month. If you want to subscribe to the channel, use the subscribe button.
https://www.youtube.com/channel/UChrOvC-DFkPNxKIxe-XKD3g 

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Newsletter Emailed every three months (I am the only one that can see your email address. Indeed, I am the only one that can access anything here.) Sign up in the menu at the left.
Facebook Flying Circus of Physics site (public site): my old television videos and many photos. Here is the link. Come for a visit, and consider signing up as a fan of the site.
Jay Waller stories: Physics for
Citations (over 11,000) and links (over 2000) for items in the book (pdf files):
       Chap 1, Chap 2, Chap 3, Chap 4, Chap 5, Chap 6, Chap 7

----  Jearl Walker

Flying Circus of Physics SpotlightFlying Circus of Physics Spotlight

Sloshing
Wednesday, July 01, 2015

Why does coffee slosh from a cup as you walk but beer in a glass or mug does not? Here are a few more examples of sloshing, including one in which sloshing helps float a canoe that was submerged.  

Flying Circus of Physics SampleFlying Circus of Physics Sample

Wintergreen glow in the closet

You and a friend first adapt your eyes to darkness for about 15 minutes in a closet or outside on a moonless night. Then have your friend chew a wintergreen Life Saver candy (a candy in the shape of a marine life saver and infused with the oil of wintergreen) with the mouth as open as possible so that you can see inside. Why does each bite initially produce a faint flash of blue light, and why do later bites fail to produce the light? (If you don’t want to eat the candy, squeeze it with a pair of pliers until it fractures.) Why does tonic water have a faint blue tint? MORE

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