Tampilkan postingan dengan label Physics. Tampilkan semua postingan
Tampilkan postingan dengan label Physics. Tampilkan semua postingan

Minggu, 21 Februari 2010

Einstein and Newton Gravity



Take a look at this..
what's the different?

A Narrow Definition of Gravity

Gravity, what would you think if you hear this word?. Of course you give the same perception. One of the most important force in the formation of the universe is gravity. Why? In a simple gravity can imagine such a thing pull in the other things, this momment has a value, that is the value of the force can be appear from the multiplication of the gravitational constant with the two Masses will be the object count, divided by the square of the distance mass between the two points. Gravitational constant can be rounded to 6.67 x10-11 Nm2/kg2. It is calculated according to Newton, or using a Newtonian-Galilean transformation. Can take the example of the above calculation, if the gravitational constant decreases in value a little, then the formating of the universe would be slow. Conversely, if the constant value is larger than now, the universe could had a small form and short-lived. May be analogous to gravity as the force binding the nucleus in an atom, a constant value must be really fit and proportional.

Jumat, 23 Januari 2009

Global Warming Issue

 In the 21st century now, modern human beings who have technology-based civilization, but human to human activity especially 21st century makes the stability of our earth is disturbed by the phenomenon of global warming. Global warming is an event which in earth temperature increases resulting from CO2 and CFCs (Chloro Floro Carbon) that are trapped in Earth's atmosphere and can not be described so that the heat from sunlight is not fully reflected by the earth.

The impact than the temperature of the earth is getting warmer, also can cause chunks of ice at the two poles of the earth slowly melt, causing sea level rise (epirogenetic), also resulted in holes in the ozone and which in fact is the earth's magnetic shield protects the earth from the sun superabundant, and from the billion of protons due to solar sunspot activity.



(Quote from my indonesian task)

Sabtu, 17 Januari 2009

4 Dimension

Universe consists of 4 dimensions, 3 dimensional space consisting of the length, width and height. 4 is a time dimension to the visible linear and bound with other dimensions.