who discover water and how long ago?
100625
I don't know who, but it was probably about 8 millions years ago, on a Tuesday morning.
813560
Eons ago there were rivers\n\nTh
205767
It depends on what you mean by found. Because Venus is so bright, the first caveman who went outside at dusk or dawn surely noticed it. The ancient Greeks knew enough about it to know that it was different from other "stars". Mercury, Mars, Jupiter, and Saturn were also known to the ancients. This probably includes among many others the Chinese, Babylonian, and early American cultures which were relatively sophisticated. \nGalileo in 1610 was first to observe that Venus had a visible disk and that it had phases like the moon so perhaps he could be considered to have discovered the modern Venus. Captain James Cook made observations of a "Transit of Venus" in 1776-1779.
900831
There is some debate on this, but from my Archaeology class, I learned that the first real human (homo sapien) found is approximately 160,000-120,000 years old.  This skeleton was found at Klasies River Mouth, South Africa.  \n\nI hope this helps!
375432
Someone on Carolyn Porco's team in the Space Science Institute in Boulder Colorado. They are the team responsible for analysing images that come back from the Cassini probe, which is currently orbiting Saturn and its moons. Carolyn Porco is the main mission scientist, is an expert on Saturn and has been involved in this research for decades. The discovery is still tentative, though. They  \n\nWilliam Herschel discovered Enceladus, not evidence of water - that was only announced a few weeks ago on March 6.
391209
1. I don't know it must haave rained and rained and rained and rained some billions of years ago. 2 Probably some billions of years ago.3 For us to live duh
884320
Author of the true power of water, i have the book, really fascinating!
793174
Life.. possibly (we have observed signs of ancient liquid water there),,intelligent... doubtful.. unless they traveled here and we are them??
25359
Probably gold was one of the first elements "discovered". However, copper as well has been known since prehistoric times. Iron has been known since prehistoric times, as has zinc, silver, tin, lead and mercury. Where these were discovered first, and by who, is not clear. However, there are clearly a lot of contenders for the "first element", if one wants to choose among these. \n\nIf one looks for more modern discoveries, then these are better documented (look at the attached reference). Some early contenders are listed below:\n\nCobalt was discovered by Swedish Chemist Georg Brandt in 1735. \n\nCavendish found hydrogen in 1766.  \n\nJoseph Black of Scotland found magnesium was a separate element in 1755. \n\nNickel was found by Swedish metallurgist Axel-Frederik Cronstedt in 1751. \n\nDaniel Rutherford discovered nitrogen in 1772. \n\nCarl-Wilhelm Scheele in 1771 discovered oxygen is an element in Sweden. \n\nGerman merchant and alchemist Hennig Brand found phosphorus in 1669.\n\nOf the modern elements,  phosphorus appears to be the first found, in Germany.
525019
You have to start with Anton van Leeuwenhoek. This Dutchman was the first man to use a microscope to view water and saw the small animals living there. He is called the father of microbiology according to wikipedia.
112629
Very roughly 2 billion years ago.  But you should be aware of two points. \n\nThe first is that the date is a matter of considerable debate and it could easily be half a billion years either side of that.\n\nThe second is that the transition was extremely slow, starting with the addition of oxygen by inorganic processes and then taking a massive leap with the evolution of oxygen producing autotrophs.
895944
Fact 1: The sun was discovered 35,007 years ago.\nFact 2: It was discovered by Carl Sagan.\nFact 3: Using his eyes.
1123365
Did he have his hands in water a long time?
816259
You are asking about the field of hydraulics. Knowledge and study of this goes back at least to ancient Greece. (It was Archimedes who, according to legend, solved the puzzle of the dishonest goldsmith when he submerged himself in his bath after puzzling over the problem for days, noted the water overflowing the tub, and ran naked through the streets shouting "I've got it!" Only he shouted it in Greek, so it came out "Eureka!" (As far as running naked through the streets goes, the Greeks took a more liberal view of such behavior than our present society. If you were to try that, you'd probably be chastised firmly.) \nBut I digress. Realizing that liquids are essentially incompressible, he was able to determine that the goldsmith was in fact a crook/Republican. From this humble start, modern hydraulic studies began.
440690
There is some dispute over who discovered oxygen.  Joseph Priestley and Antoine Lavoisier both worked on the discovery of oxygen.  Lavoisier published his work first, but I believe that Priestly did his work first.\n\nAntoine Lavoisier named hydrogen, but it was generated and described in earlier experiments by Theophrastus Bombastus von Hohenheim, Robert Boyle, and Henry Cavendish.
273690
Archimedes discovered the law of bouyancy. It states: on everybody emersed in water (or fluid in general) there acts an upward force with magnitude equal to the wieght of displaced water/fluid.\n\nthere are 3 scenarios for a body in water:\n\n1. floats on the surface; gravity of the body equals bouyancy and equals exactly the amount of weight of the displaced water\n\n2. the body is entirely emersed in water; again gravity = bouyancy\n\n3. the body sank; gravity = boyancy + normal reaction of the floor.\n\n\nIt helps you to swim. It it easier to swim in salty water(a sea or ocean) than in unsalty water(lake or swiming pool) because the salt water is heavier and therefoce the upward bouyancy force is large.\n\nThe mith goes that Archimedes was in the bath tab when discovered the law we name after him. He was excited, run out naked yeliing "Eurika, Eurika." So this phrase now is always linked with a discovery of some kind.\n\nHappy swimming!
1717
Benjamin Franklin but a lot of scientists contributed in the discovery. It all started 600 BC with the greeks followed by Dr William Gilbert,Benjamin Franklin,Galvani and Volta,Michael Faraday,Thomas Edison and Joseph Swan,George Westinghouse and Nikola Tesla,James Watt and finally Andre Ampere and George Ohm