This My Page

Comments

Post a Comment

Popular posts from this blog

Avengers: Infinity War Movie Analysis

Image
Avengers: Infinity War is another classic superhero movie that involves action scenes made more epic by violating the laws of physics. That being said, it took some time to find scenes that involved spotty physics. Here are a few that caught my eye.  Scene One - Cull Obsidian's Hammer Throw In the battle scene between Black Order and the Avengers in New York City, Cull Obsidian's hammer seems to be resistent to Newtons first law when it is in contact with a concrete wall, but abides by it when interacting with the ground. Newtons first law states that a body will remain at rest or move in a straight line at a constant speed unless acted upon by a net outside force.  1:38-1:42 Notice how the hammer travels straight through the building without slowing down whatsoever. Comparing this to newtons first law, it seems that the hammer is resistent to any outside forces. Now look at this scene where the hammer is slowed down dramatically by the ground. 1:55...
Read more

The Twin Paradox vs. Contact

Image
     The movie Contact makes an effort to display a realistic representation of the Twin Paradox, but the fundamental concept of time dilation was displayed incorrectly. The time dilation in the twin paradox is a result of the point of view of a stationary observer seeing a clock move slower as it moves with a constant velocity past them. This can be portrayed in the diagram below:      Keep in mind that light in a vacuum will always travel at the speed of light [c], which represents the second postulate of special relativity. The second section of the illustration above represents the actual motion of a photon in both a moving inertia frame and a stationary inertia frame. The third section of the illustration represents what a stationary observer would see as the clock moves by them at a constant velocity. Notice how the distance that the photon actually travels (2d) is shorter than the distance that the stationary observer sees. To the stationary obs...
Read more

Sir Martin Rees on Climate Change

Image
Sir Martin Rees, the Astronomer Royal of the United Kingdom, gave a public lecture at the beginning of this month titled "Surviving the Century" in which he offered predictions about the future of humanity and the world changing problems we face. Martin Rees is a world leading cosmologist who gave this lecture not because he is an expert in the field of environmental science, but because he is in a position where he can spread awareness about the critical time we are in.  The topic that he claimed needs the most immediate attention is that of climate change and global warming. He asserted that the population growth in the world has increased 4.2 billion in the last fifty years, which is directly proportional to the worlds fossil fuel use. He stated " If humanity’s collective impact on land use and climate pushes too hard, the resultant ecological shock could irreversibly impoverish our biosphere", which is also causing mass extinction. He followed this statement u...
Read more