General relativity

Projectiles, such as the ones shot from cannons, are affected by drag or air resistance. The amount of drag exerted on to an object is affected by many different factors, such as air density and the size of the projectile. It is important to understand drag, as it affects the distance an object is able to travel if it is not influenced by outside forces, such as a cannons projectile. The equation for drag is shown below. F=pCA/2 v^2 p = The density of the air. C = The drag coefficient of the…

Cosmic Paradox: Astronomers Discover Stars Possibly Older Than The Universe Age may only be a number, but when it comes to cosmic terms, it is important for certain rules to be obeyed. What we are saying is that it should not be possible for complex creatures to be older than planets or to have a rocky planet that'll predate the stars. It should even be impossible to have a star that is older than the observable Universe. Source: NASA…

Roller coasters are a must see attraction in amusement parks around the world, even though they are a good source of entertainment not many are aware of how roller coasters actually function. Even though each and every roller coaster is unique all of them work under the same concept. Most roller coasters start out by ascending to a higher surface which is done to build up enough potential energy to power the carts throughout the entire ride. Energy is usually defined as the ability or…

WASHINGTON: Scientists have surprisingly built up an approach to decide the vicinity of solid attractive fields profound inside using so as to throb goliath stars a procedure like medicinal ultrasound. Attractive fields have critical results in all phases of stellar advancement, from a star's arrangement to its destruction. Presently, surprisingly, astrophysicists have the capacity to decide the vicinity of solid attractive fields profound inside throbbing goliath stars. Analysts utilized…

John Dalton was born Sep 6, 1766 in a modest Quaker family in Cumberland, England. John always strived for a good education, but his family was very poor. When he was 12 he taught at the school he went to. When John was 14 he spent a year working as a farmhand, but went back to teaching at a boarding school in Kendal.Four years later and he was made principal of the school. When John was 26 he was a teacher of mathematics and natural philosophy at Manchester’s New College. In 1794, being his…

The Life Cycle of Stars The life cycle of a star is an incredible, miraculous phenomenon that begins with just two elements: helium and hydrogen. The result is the all well known star that is seen twinkling in the night sky and also what lights up the day here on Earth. There are hundreds upon thousands of stars that take on many different sizes and colors. Depending on the size of the star from its birth, the star could take two paths at the end of its life: turn into a nebula leaving behind a…

The following paper is on each of four subjects: black holes, dark matter, dark energy, and the multiverse theory. The first subject is black holes, which are regions of space having a gravitational field so intense that no matter or radiation can escape. Their existence is greatly debated over, and it still has not been determined whether they exist. The second subject is dark matter. Dark matter is a placeholder that cannot be seen. It accounts for 27% of the matter in the universe, but like…

Ibn al-Haytham was born in Basra in 354 AH / 965 AD in the period were considered Islamic Golden Age, and historians disagree whether of Arab origin or Persian. Also known by the Latinization Alhazen or Alhacen. Ibn al-Haytham began to receive science, during that period he spent in Basra, where he read many of the books of the Islamic faith and scientific books. That era was booming in various sciences of mathematics and astronomy, medicine, etc., there are embarked on the study of engineering…

I had an open-eyed dream, a kind of vision that I would like to share. The image out of focus that I saw took me back to the time when the primitive form of man touched land for his very first time leaving the water kingdom behind. Then a series of images flashed in front of my eyes showing the evolution from the crawling to the standing and all the mutations of the living energy called man. I saw the progression and the improvement of his presence and his demeanor reaching a tall elegant…

Space is extraordinary! It is full of planets, stars, and many other things. There are several different hypotheses that were proposed on how the solar system was created. One of these hypotheses is the Nebular that was formulated by Pierre-Simon de Laplace in 1796. Many years later, in the 1900s, the Protoplanet hypothesis was proposed by Carl von Weizsäcker and Gerard Kuiper. Forest Moulton and Thomas Chamberlin proposed the Planetesimal hypothesis in 1905. The Nebular hypothesis starts…