Q: What do you call a cat sitting on the beach on Christmas Eve?
A: Sandy Claws.
Q: Where does the snowman hide his money?
A: In the snow bank.
Q: What type of cars do elves drive?
A: Toy-otas.
Q: Why did the Christmas tree go to the barber?
A: It needed to be trimmed.
Q: What kind of motorcycle does Santa ride?
A: Holly Davidson.
Q: What do you call a bankrupt Santa?
A: Saint Nickel-less.
Parity conservation disprovedIn 1956, the formerly believed “law” of conservation of parity was disproved in the first successful results from an experiment conducted by Madame Chien-Shiung Wu at Columbia University on the beta-decay of cobalt-60. It had been suggested in a paper published by Tsung-Dao Lee and Chen Ning Yang on 1 Oct 1956. There had been problems to overcome working with the cobalt sample and detectors in a vacuum at a working temperature of one-hundredth of a kelvin. Wu's team repeated the experiment, doing maintenance on the apparatus as necessary, until on 9 Jan 1957 further measurements confirmed the initial results. Leon Lederman performed an independent test of parity with Columbia's cyclotron. They held a press conference on 15 Jan 1957.« |
