Emma Stone image come from Pinterest
Gravity. The average person probably doesn’t think about it on a daily basis, but yet gravity affects our every move. Because of gravity, we fall down (not up), objects crash to the floor, and we don’t go flying off into space when we jump in the air. The old adage, “everything that goes up must come down” makes perfect sense to everyone because from the day we are born, we are seemingly bound to Earth’s surface due to this all-pervasive invisible force.
But physicists think about gravity all the time. To them, gravity is one of the mysteries to be solved in order to get a complete understanding of how the Universe works.
So, what is gravity and where does it come from?
To be honest, we’re not entirely sure.
We know from Isaac Newton and his law of gravitation that any two objects in the Universe exert a force of attraction on each other. This relationship is based on the mass of the two objects and the distance between them. The greater the mass of the two objects and the shorter the distance between them, the stronger the pull of the gravitational forces they exert on each other.
We also know that gravity can work in a complex system with several objects. For example, in our own Solar System, not only does the Sun exert gravity on all the planets, keeping them in their orbits, but each planet exerts a force of gravity on the Sun, as well as all the other planets, too, all to varying degrees based on the mass and distance between the bodies.
And it goes beyond just our Solar System, as actually, every object that has mass in the Universe attracts every other object that has mass — again, all to varying degrees based on mass and distance.
( UNIVERSE TODAY)
WHERE DOES GRAVITY COME FROM?
Or Where does the energy for gravity come from?
It is not impossible energy for Earth's gravity come from Earth's Radiation, The earth's radiation in this case is - all of the radiation / Earth's energy - including energy that come from earth's magnetism, and in the frame aether exist, because gravity itself is the clue the existing of undetectable of aether.
In fact, Earth received energy in the form of radiation from the Sun. For the Earth to remain in balance the energy coming into and leaving the Earth must equal.
To be sure, gravity come from universe itself. Not from spacetime.
There no such spacetime or space-time and warped space, or what? Ripples in spacetime ....... Gravitational waves cause by two black holes collide .....
Clearly in print Einstein's proving method for his hypothesis the deflection of light by the Sun is not scientific and deeply wrong. The general relativity has been wrong since the beginning, how can black holes exist and how can big bang theory correct ??
"What should you do when you find you have made a mistake like that? Some people never admit that they are wrong and continue to find new, and often mutually inconsistent, arguments to support their case." (Stephen Hawking)
Clearly in print Einstein's proving method for his hypothesis the deflection of light by the Sun is not scientific and deeply wrong. The general relativity has been wrong since the beginning, how can black holes exist and how can big bang theory correct ??
"What should you do when you find you have made a mistake like that? Some people never admit that they are wrong and continue to find new, and often mutually inconsistent, arguments to support their case." (Stephen Hawking)
Read more :
1, Radiation / electromagnetic radiation were discovered in the early 19th century, it's about 74 years after Isaac Newton had died (25 December 1642-20 March 1727).
Johann Wilhelm Ritter was born in 1776 in Samitz, Silesia, which is now part of Poland. He worked as a pharmacist between 1791 and 1795 and then attended the University of Jena to study science and medicine. While at the University, Ritter performed numerous experiments.
Johann Ritter is best known for his discovery of ultraviolet light in 1801. A year earlier, in 1800, William Herschel discovered infrared light. This was the first time that a form of light beyond visible light had been detected. After hearing about Herschel's discovery of an invisible form of light beyond the red portion of the spectrum, Ritter decided to conduct experiments to determine if invisible light existed beyond the violet end of the spectrum as well.
( Discovery Ultraviolet Light )
2.Radiation transfer from Sun to Earth.
Properties of Solar radiation: The Sun is located at the center of our Solar System, at a distance of about 150 x 106 kilometers from Earth. With a surface temperature of 5780 K (degrees Kelvin = degrees C + 273.15), the energy flux at the surface of the Sun is approximately 63 x 106 W/m2 (Do you know what law of radiative transfer do we use to calculate this number? Check the link to radiative heat transfer.) This radiative flux maximizes at a wavelength of about 0.5 μm (can you show that this is true based on the laws of radiative heat transfer?) which is at the center of the visible part of the spectrum.
Solar radiation on Earth: As the Sun's energy spreads through space its spectral characteristics do not change because space contains almost no interfering matter. However the energy flux drops monotonically as the square of the distance from the Sun. Thus, when the radiation reaches the outer limit of the Earth's atmosphere, several hundred kilometers over the Earth's surface, the radiative flux is approximately 1360 W/m2 (Can you calculate this number from the flux at the surface of the Sun and the distance to the Earth? Can you figure out the flux on Pluto, which is 39 times as far from the sun as Earth?).
Effect of orbit's shape: The radiation at the top of the atmosphere varies by about 3.5% over the year, as the Earth spins around the Sun. This is because the Earth's orbit is not circular but elliptical, with the Sun located in one of the foci of the ellipse. The Earth is closer to the sun at one time of year (a point referred to as perihelion) than at the "opposite" time (a point referred to as aphelion). The time-of-year when the Earth is at perihelion moves continuously around the calendar year with a period of 21,000-years. At present perihelion occurs in the middle of the Northern Hemisphere winter. The annual average radiative solar flux at the top of the Earth's atmosphere (=1360 W/m2) is sometimes referred to as the Solar Constant because it has changed by no more than a few percent over the recent history of the Earth (last few hundred years). There are however important variations in this flux over longer, so-called "geological", time scales, to which the Earth glaciation cycles are attributed.
( Columbia.Edu- Radiation )
3.Earth's energy budget and Radiative equilibrium
Earth's energy budget accounts for how much energy comes into the Earth's climate system from the Sun, how much energy is lost to space and accounting for the remainder on Earth and its atmosphere.Quantifying changes in these amounts is required to accurately model climate.
Received radiation is unevenly distributed over the planet, because the Sun heats equatorial regions more than polar regions. Energy is absorbed by the atmosphere and hydrosphere and, in a process informally described as Earth's heat engine, the solar heating is distributed through evaporation of surface water, convection, rainfall, winds and ocean circulation. When incoming solar energy is balanced by an equal flow of heat to space, Earth is in radiative equilibrium and global temperatures stabilize
( Earth's Radiaton )
4. Aether Theories.
Einstein sometimes used the word aether for the gravitational field within general relativity, but this terminology never gained widespread support.
( Aether Theories )
( Earth's Radiaton )
4. Aether Theories.
Einstein sometimes used the word aether for the gravitational field within general relativity, but this terminology never gained widespread support.
( Aether Theories )
Gravity is the force to maintain the well balanced universe. Where does the energy for gravity come from? It is not impossible the energy for Earth's gravity come from Earth's radiation. For example, the energy for Jupiter's gravity come from Jupiter's radiation.
