Those pesky Abbreviations!

And then there's gigabytes (and megabytes). Do the prefixes mean 1000 or 1024?
Giga is always decimal, in this case 1GB = 10^9 bytes. The binary multiple 2^10 is 1024 has the prefix Kibi.., and multiples are Mebi.., Gibi... Examples are 1024 bits = 1Kibit (long form 1 kibibit), 1024 Kibits = 1 Mibit (long form 1 mebibit), 1024 Mibits = 1 Gibit (long form 1 gibibit), etc.
So if you buy a pendrive of 64GB capacity, it turns out it has less capacity in bytes than you expect...
 
The U for voltage is another story :) As all stuff was started in Europa things became named often in the language of the founder which could be any European country. The unit name often being derived from the name of the founder. The inventors of that time were contrary to those who achieve things in modern society exclusively male.
The unit for voltage is named after Alessandro Volta, and the symbol is V. The German contributed much to the theory of electricity, and called it "Unterschied" (difference), hence the other frequently used symbol U.
 
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But the bubbles make the diver fall deeper, duzn‘t it?

Btw, there was a video floating around some time ago (2016 olympiade?) of a olympic jump from way back in time (1960 or so), which was just a totally perfect, simple jump. 2^24 more elegant than nowadays‘ flipflopping down…
 
Have to disagree. I saw it on Nova or some similar program.

Fair enough.
The rule book only stipulates for competitions so they could be used differently during training.

Bubble machines are allowed during competition but 'the machine should only be used for this purpose if it creates sufficient water agitation when working with very low pressure; otherwise a horizontal water sprinkler system shall be used.'
 
I'm sure, Jan.

As with every SI unit named for a person, its symbol starts with an upper case letter (Hz), but when written in full it follows the rules for capitalisation of a common noun; i.e., "hertz" becomes capitalised at the beginning of a sentence and in titles, but is otherwise in lower case.

So in languages like German in which common nouns are always capitalized the Hertz too should be capitalized, yes?