Miss_Understands_
Miss_Understands_ t1_iyd701t wrote
Reply to comment by WFOMO in ELI5: How does electricity shock us in water? by thebiggestbirddd
No, because salt doesnt make water perfectly conductive, and a 100,000 volt bolt will break down any insulation.
Miss_Understands_ t1_iycpsxh wrote
Shortest correct answer:
Water conducts electricity, but your skin conducts it better.
Put baking soda in the water and it becomes VERY conductive. Stick 2 electrodes in and the charge will go around you and rapidly boil the water instead.
Miss_Understands_ t1_iycn4vb wrote
Reply to eli5. If Windows is an 11gb download, why do you need at least 65gbs free on your hard drive to run it? by graemo72
Because the data is compressed to reduce download time, and inflated at the host computer.
Imagine that you live somewhere that for every sentence, they they make you append "I love our great and mighty country and our wonderful leader."
If you had to dictate your work over the telephone, you'd probably abbreviate the repetitive part to "I love the country, etcetra."
Then when the secretary typed it, she would expand the crazy stuff herself.
Everything except purely random data can be compressed, almost always at least 50%. Windows expanded from 11G to 65G, so it was compressed to 1/6 he size.
Text can usually be compressed to 1/15 the size. One reason is that all the spaces can be replaced with a very short symbol (string of bits). Rare letters like Q and Z are replaced with a long string of bits.
Miss_Understands_ t1_it7u6hq wrote
If I may ask an out-of-context beginner question, I've always wondered why the nozzles aren't longer. Sometimes the pressure drives the exhaust up the sides of the rocket.
Compared to the Saturn V engine exhaust thrust, I'm surprised the sea-level air pressure even needs to be in the equation.
Miss_Understands_ t1_jdzgggw wrote
Reply to comment by ECatPlay in During Electrolysis of Water, what happens to oxygen at the cathode and hydrogen at the anode? by Martinjg_ge
I must say, that is an exceptionally good answer -- good both for experts and beginners.