The Higgs boson. In fact, it has not been observed by 2011.
In 1673 Anton van Leeuwenhoek, who was a Dutch scientist, discovered animalcules. The animalcules were living cells that he observed in water from a pond.
How was the planet Uranus been observed
Judgement based on what has been observed is a conclusion.
1673 = mil seiscientos setenta y tres
Father Marquette and Louis Joliet explored Illinois in 1673.
It was Antonie van Leeuwenhoek who describes bacteria in 1673
2*1673 = 3346 [don't forget that units are important].
Yes because: 1673/239 = 7
One kilometre is equal to 1000 x 100 = 100000 centimetres. Therefore, 1673 centimetres is equal to 1673/100000 = 0.01673 kilometres.
where has some of the acid rain and forest decline been observed
Not on another planet per se. Venus and Mars have volcanoes, but none have been observed to erupt. Volcanic eruptions have been observed on Io, one of the moons of Jupiter.
Yes. Evolution is routinely observed in both labs and in nature.