TASSO (Two Arm Spectrometer SOlenoid)[1] was a particle detector at the PETRA particle accelerator at the German national laboratory DESY. The TASSO collaboration is best known for having discovered the gluon, the mediator of the strong interaction and carrier of the color charge.[2] Four TASSO scientists, Paul Söding, Bjørn Wiik, Günter Wolf and Sau Lan Wu, were awarded the High Energy and Particle Physics Prize from the European Physical Society (EPS) in 1995. A special prize was also awarded to the TASSO collaboration, as well as the JADE, MARK J and PLUTO collaborations, in recognition of their combined work on the gluon as the "definite existence (of the gluon) emerged gradually from the results of the TASSO collaboration and the other experiments working at PETRA, JADE, MARK J and PLUTO".[2] TASSO took data from 1978 to 1986 and discovered the gluon in 1979.
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The Counterintuitive Physics of Turning a Bike
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How Do Bikes Stay Up?
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How Do Airplanes Fly?
Transcription
If you’re riding a bike and want to turn right, you might think that you should turn the handlebars to the right. However, that’s wrong. Because, unlike a car where turning the wheels merely changes the direction the car is pointed, turning the front wheel makes a bike lean. When you turn the bike wheel to the right, the wheel goes to the right, right out from under you and the rest of the bike. So now you’re leaning to the left, and the force on the bike from the ground will be directed to the left, and a leftward force, of course, makes you go to the left. Since physics seems determined that you’re going left, you’d probably better just give in and let the handlebars turn to the left, too. And that’s how you turn left on a bike – by first turning right. If you really wanted to go right, you should have started by counter-steering to the left. Once you finally get yourself into a right turn, you’ll also need to work to keep yourself in the turn, since most bikes and motorcycles have a tendency to automatically stabilize and straighten out on their own. This happens because a right-leaning bike automatically steers itself even farther to the right to get the wheels back underneath its center of mass, so you’ll actually need to apply a slight torque to the left to keep the wheels from turning too far to the right. Yes, it’s counterintuitive: to turn right on a bike you turn left, then keep trying to turn left while leaning and turning right. Bikes are weird.
See also
References
- ^ Burkhardt, H.; Koehler, P.; Riethmüller, R.; Wiik, B.H.; Fohrmann, R.; Franzkea, J.; Krasemann, H.; Maschuw, R.; Poelz, G.; Reichardt, J.; Ringel, J.; Römer, O.; Rüsch, R.; Schmüser, P.; van Staa, R.; Freeman, J.; Lecomte, P.; Meyer, T.; Wu, Sau Lan; Zobernig, G. (June 1981). "The TASSO gas and aerogel Cherenkov counters". Nuclear Instruments and Methods. 184 (2–3): 319–331. Bibcode:1981NucIM.184..319B. doi:10.1016/0029-554X(81)90732-1.
- ^ a b Flegel, I; Söding, P (2004). "Twenty-Five Years of Gluons". DESY: CERN Courier.
Further reading
- P. Söding (2010). "On the discovery of the gluon" (PDF). European Physical Journal H. 35 (1): 3–28. Bibcode:2010EPJH...35....3S. doi:10.1140/epjh/e2010-00002-5. S2CID 8289475.
External links
This page was last edited on 12 October 2023, at 03:35