Gravitational pull of Sun
What is the gravational pull of the sun? - forman (age 15) north shore, california A: Well, the strength of a gravitational field of a spherically symmetrical object is inversely proportional to the square of the distance you are from the center (that is, if you are outside - I hope you re outside of…
What is the relativity theory?
Relativity is one of the most famous scientific theories of the 20th century, but how well does it explain the things we see in our daily lives? Formulated by Albert Einstein in 1905, the theory of relativity is the notion that the laws of physics are the same everywhere. The theory explains the behavior…
Formula for force of attraction
Field of a cylindrical bar magnet calculated with Ampère s model Two models are used to calculate the magnetic fields of and the forces between magnets. The physically correct method is called the Ampère model while the easier model to use is often the Gilbert model. Ampère model: In the Ampère model, all magnetization is due to the effect of microscopic, or atomic, circular…
Continue Reading
Peter Higgs theory
However, after struggling with his theories in the 1960s without much support, the subsequent transition to celebrity has not been a comfortable one for him. Nobody else took what I was doing seriously, so nobody would want to work with me,he said in an interview on The Life Scientific on BBC Radio 4. I was thought to be a bit eccentric and maybe cranky. Asked how he feels…
Continue Reading
Gravitational pull on Moon
By measuring the ages of lunar rocks, we know that the moon is about 4.6 billion years old, or about the same age as Earth. The distance between the Earth and its moon averages about 238, 900 miles (384, kilometers). The diameter of the moon is 2, 160 miles (3, 476 kilometers). The moon s massthe amount of material that makes up the moonis about one-eightieth of the…
Continue Reading
Netflix science documentary
More and more people today are interested in science. With the development of modern technologies, it becomes possible for everyone to get the access to the most interesting and fascinating science documentaries. Video-streaming companies allow us to watch the best science shows and movies, giving us a chance to get closer to the world of science. There are various companies…
Continue Reading
Uses of gravitational force
Gravity between planets We can now use Newton s Law to derive some results concerning planets in circular orbits. Although we know from Kepler s Laws that the orbits are not circular, in most cases approximating the orbit by a circle gives satisfactory results. When two massive bodies exert a gravitational force on one another, we shall see (in the SparkNote on Orbits) that…
Continue Reading