Just to pass some time, here are some fun tidbits courtesy of Google (via Buzzfeed).
- The smallest standard scientific measure of time is the “Planck time“. It takes you about five hundred and fifty thousand trillion trillion trillion Planck times to blink once, quickly.
No wonder I get so tired when I blink my eyes – there’s too much Planck going on!
- A second isn’t what you think it is. Scientifically, it’s not defined as 1/60th of a minute, but as “the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom“.
Try saying that next time you just need to nip out for a moment. See how easily it will trip off your tongue: “Can you just hang on for the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom.”
- There’s no such thing as “now” as far as physics is concerned. Space and time are fluid, affected by gravity and your speed. Einstein put it like this: “For us physicists, the distinction between past, present and future is only an illusion, however persistent.”
So, next time someone asks you to do something “NOW” – you can claim to be a physicist and ignore them with impunity because “now” is just an illusion!
Now, for my all-time personal favourite …..
- Time passes faster for your face than for your feet (assuming you’re standing up). Einstein’s theory of relativity dictates that the closer you are to the centre of the Earth, the slower time goes – and this has been measured. At the top of Mount Everest, a year would be about 15 microseconds shorter than at sea level.
This finally explains why the skin on my face doesn’t look as good as the skin on my feet – it’s the age difference!