Jump to content

evan

Members
  • Content Count

    32
  • Joined

  • Last visited

Community Reputation

0 Neutral

About evan

  • Rank
    Advanced Member
  1. One of the most important concepts in the movie, Interstellar, was the theory of relativity. And time, was a big factor in the movie. When the crew spent too much time on the water planet, Cooper was looking for a way to reverse it, asking if there was a way to reverse time. Of course we know that it is impossible in any way to go back in time, however I feel like the movie didn't stay true to that idea. When Cooper goes through the black hole he not only shakes Dr Brands hand but he also is able to influence a point in time that is at least 20 years. Also, they say that the wormhole they use
  2. Team Name: Elladen Research Available Funds: $60,000 Vehicle Name: The Penultimate Mistake Vehicle Parts List and Cost: Mk1 Command Pod, FL-T800 Fuel Tank x8, FL-T400 Fuel Tank x2 TR-18A Stack Decoupler x2 LV-T30 "Reliant" Liquid Fuel Engine x5 48-7S "Spark" Liquid Fuel Engine Aerodynamic Nose Cone x4 Tail Fin x4 TT-70 Radial Decoupler x4 FTX-2 External Fuel Duct x4 Total Cost: $22,823 Design Goals: It was designed to reach 10,000 meters but as we easily surpassed that feat we decided to try to reach the moon. It is supposed to be a very fuel efficient rocket that can travel far.
  3. Population concerns on Earth are leading scientists to inquire whether colonizing Mars is possible. As of now, over 78,000 people have applied to leave Earth forever and live on Mars. Mars One, a nonprofit organization, is sponsoring the colonization with a take-off date sometime in 2023. Out of the applicant pool, four will be chosen to send first to Mars. The first four will lay the groundwork for a permanent colony. Two years after the first four land, Mars One would send up more people to the colony. With the application process underway, it seems as though scientists have discovered ways
  4. While we use percent error to dictate how far we off in class, there are far more efficient ways of defining the error of the set. Standard deviation, for example, given a value, will give rise to numbers that fall within one S.D., two S.D. and so on. "One can find the standard deviation of an entire population in cases (such as standardized testing) where every member of a population is sampled. In cases where that cannot be done, the standard deviation σ is estimated by examining a random sample taken from the population. An estimator for σ used when sample size is very large is the sta
  5. Alright, this blog is for all you pyros out there. I couldn't help but want to delve a little deeper into the nature of fire, and what I found is pretty interesting. In actuality, fire is simply a gas thats hot enough to incandesce, which means give off blackbody radiation whos color is determined by the temperature. Very hot fires can on occasion even reach the plasma phase, where they become partially ionized. However, the average fire burns at about 1000F, which produces the characteristic red-orange flame that we all recognize. When burning objects, one can notice that they burn at differe
  6. Many common materials like wood, water, plants, animals, diamonds, fingers etc. are considered not to be magnetic but are in fact very slightly diamagnetic. Diamagnets repel, and are repelled by a strong magnetic field, and two of the strongest known diamagnetic materials are bismuth and graphite. Compared to the forces created by traditional magnets, diamagnetic forces are exponentially weak, however when arranged and prepared properly, can produce startling effects, levitation in this case. UCLA university has done multiple studies and found the most efficient and effective configurations fo
  7. There are two types of spin that a player can apply to a tennis ball, those being topspin and backspin. What prompted my thoughts on this idea would be my attendance of the University of Rochester tennis match today against Nazareth. As these advanced players made the ball skip and flip and kick every which way, my mind went crazy! :labmate) A topspin shot is hit by sliding the racquet up and over the ball as it is struck. By dragging the racquet over the ball, the friction between the racquet's strings and the ball is used to make the ball spin forward, towards the opponent. The shot dips
  8. The theory of relativity encompasses two theories of famous scientist Albert Einstein: special relativity and general relativity. Concepts introduced by the theories of relativity include: -Measurements of various quantities are relative to the velocities of observers. In particular, space and time can dilate. -Spacetime: space and time should be considered together and in relation to each other. -The speed of light is nonetheless invariant, the same for all observers. Some, and to many most of the things that the theory of relativity introduces seem absolutely insane to many of those who
  9. evan

    Neutron Stars

    Neutron stars are the collapsed cores of some massive stars. They pack roughly the mass of our Sun into a region the size of a city such as Chicago or another large american city. Neutron stars are some of the densest types of massive objects in the universe, at times reaching densities of over 10e14 g/cc. At these incredibly high densities, you could cram all of humanity into a volume the size of a sugar cube, giving one just a sense, even though it is simply impossible to wrap your mind around, the uniqueness of these entities. They are ideal astrophysical laboratories for testing theorie
  10. Energy Transfer during Running When a person runs, their body must convert potential energy into kinetic energy. Potential energy is the energy stored within a system. Potential energy is used when the system uses kinetic energy to move in a horizontal direction. In the human body, potential energy is stored in the form of chemical energy. The chemical energy comes from the food that a person consumes throughout the day. The body needs a certain amount of calories (the energy from food) in order to perform certain activities. If the runner has not consumed enough calories throughout thei
  11. We all love the classic movies of Star Wars, if you don't love these movies than your probably too cool to be reading this blog, but if your like us in physics c you can see the glaring flaw that represent themselves throughout the movies. Star Wars is in a different galaxy but the same laws of physics should be universal so while watching the movies you can pick up on certain aspects that are in fact impossible. 1.) One of the most basic flaws we can see in the movies is that during the epic space battles we can hear not only blaster fire, but the explosions and droid sounds such as in the
  12. The Large Hadron Collider is the worlds largest and highest energy particle accelerator, and located in Switzerland as told to us from the Valentines day special of the Big Bang Theory. In the episode Leonard wins a trip to Switzerland over Valentines day to visit the Collider, and than must deal with the drama that unfolds as Sheldon tries to take Penny's spot on the trip. After watching the episode my own interests over the Collider were peaked and so I went online to research it. The LHC lies in a tunnel beneath the France-Swiss border near Geneva Switzerland. It is a machine made to and
  13. A team of researchers in Rochester have discovered a way to create metals that are highly water resistant. These metals can be used in applications such as rust-prevention and anti-icing. Before this, the same team created hydrophilic metals, meaning that they attracted water. These could be used for any applications where you need to take water from one place to another because the metal would just do it for you. Here is the article about Chunlei Guo and his production of super-hydrophobic metals. http://www.rochester.edu/newscenter/superhydrophobic-metals-85592/
  14. What's better.....being faster or being slower? Obviously faster. Have you ever wondered why some people are faster than others though? Are there trends? To understand the basics physics of running, you can think of your arms as pendulums. A pendulums velocity depends on the length of the pendulum, not the mass of the bottom. If the pendulum is shorter, the speed of the mass at the bottom is faster. Your mass at the end of the pendulum you can think of as your feet. Then proceed to assume that your legs are the pendulums. In order to shorten the pendulum...you have to bend your knees. Obvio
  15. Superconductivity was first discovered by Dutchman and physicist Heike Kamerlingh Onnes, when Liquid Mercury was cooled to just 4.2 Kelvins!! (Using some very expensive Liquid Helium) While measuring the resistance of the substance, Onnes found that at this specific temperature, the resistivity of the substance quite literally dropped down to nothing. Zero Ohms. But whats the significance? Firstly, Onnes had discovered a material that would produce no heat when an electrical current flowed through it, which has huge technical implications. It is being discussed, for instance, whether
×
×
  • Create New...