Tag Info

New answers tagged

1

First, a spot of background science. The Longitude Problem is exactly identical to the problem of establishing simultaneity on widely separated locations on the Earth's surface, and both prerequisite the existence of a reliable estimate of the Earth's diameter. Certainly Eratosthenes calculated the Earth's diameter in the 3rd Century BC, and other ...


0

The Greek astronomers (e.g. Ptolemy) could calculate longitude and latitude using spherical trigonometry. Their calculations are accurate on the assumption that the Earth is a perfect sphere. Our astronomers today believe that the Earth is slightly pear-shaped and consequently arrive at a slightly different calculation of longitude and latitude.


2

There's just more scientists around today. Population has grown tremendously over the past 200 years. On top of that, our means, tools, and time available to spend on research has grown too. And much faster communication allows ideas to spread much faster, allowing other scientists to build on what you did immediately, rather than 10 years later. At the ...


2

Larger population means that even if the percentage of people with the necessary skills and interests is the same, the total number of people with those skills and interests is much greater. Combined with the ever increasing base of scientific data on which to build (as pointed out by Andy) this causes an increase in the potential for scientific progress ...


3

New technologies build on previous technologies, so technological growth is cumulative. The rate at which it is developed, and hence accumulated, depends upon the number of people who can work on producing new technologies. The number of people engaged depends on technologies that give a proportion of the population the time to do things that are not ...


0

I searched and found this document about Ancient GR racism, not sure about the scientic studdy. A little bit beyond me http://www.anistor.gr/english/enback/AGRacism.pdf Here is an abstract from the first page Tribalism & Racism among the Ancient Greeks A Weberian Perspective By Michael Bakaoukas, Ptychion (Phil.), M.Sc. (Phil.), ...


29

Edit: I've added some headers and retracted factually incorrect information. The Status of the Metric in the United States Strictly speaking, the US has been "metric" since the Mendenhall Order, issued in 1893. The inch is defined as exactly 2.54 centimeters, the pound (mass) is exactly 0.45359237 kilograms, the pound force is exactly 4.4482216152605 ...


-3

it would be too easy to just wake up and actually LOOK at the metric system, see the logic of how easily you can specify how many centimeters are in 5.3 kilometers (so, the first clue is that the actual prefixes in the metric system MEAN SOMETHING- aka centimeter has 100 to a meter, as centi would indicate. then you have kilometer- which would indicate 1000 ...



Top 50 recent answers are included