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About MrMuffinMan

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    Physics Near-Deity
  • Birthday 12/10/1994


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  1. 1.) Don't catch senioritis too early 2.) Don't wait til last minute to do your blogs 3.) Watch the videos on Aplusphysics.com 4.) The book is your friend 5.) Try on the four minute drills 6.) Look at notes from AP-B 7.) Find a friend who knows what they're doing or 8.) Teach your friends what to do 9.) Stay ahead on independent units 10.) Don't freak out and have fun
  2. The US navy has a Master Clock which is an atomic clock that sets the time standard of the DoD and the rest of the government.
  3. Faraday Cages are used to cancel out electric fields and block most forms of electromagnetic radiation. And people in today's world have used this in some creative ways. Some people put their phones in these cages so that they can't receive any calls or texts. But I was reading and this article said that a shop lifter had be caught with a bag lined with aluminum foil. This created the bag a Faraday cage so that when the person put the item they were stealing in the bag, the bag blocked most of the signal from the tag that make the sensors by the doors of stores go off when someone tries to sho
  4. MrMuffinMan


    So this summer I will be working for a company called Lumetrics which is an engineering company that develops ways to measure very thing object without ever touching said object. They do this by using light and reflection of light. This technology is currently limited to transparent and translucent material but it's still really cool. By shinning a light into an object, some of the light bounces back at the first edge, some passes through. The light that continues through hits the back edge and more is reflected back. This difference in distance travel creates a phase shift which can be used
  5. The greatly feared captain of the pirates "Schalkimnack" was not only famous for his cruelty but also for baffling his prisoners with difficult brain twisters. This is one of his favourite riddles: Schalkimnack took a gold coin an throw it overboard into the sea. He asked: "Did the sea level ... a) rise, sink or c) stay like before?" If one of the prisoners could solve the riddle, he was set free, but in case of giving the wrong answer, he was thrown to the sharks. Legend relates that until now, nobody could manage to solve the riddle. Now you've got caught by Schalkimnack! Can you so
  6. Atomic clocks are the most accurate clocks we have and without them, everyone's time could be a little off which would mean GPS navigation would be impossible and other things that rely on exact timing, like space flight wouldn't work. Most atomic clocks are made of cesium and measure the frequency of oscillation. Cesium atoms are given energy in the form of heat and this causes the atoms to change energy states and start oscillating at their principal resonance which is a know value. Measuring the resonance of the Cesium and dividing it by the principal resonance the clock can measure 1 secon
  7. Currently the only way for us to get around in space is to use rocket fuel and chemical reactions to push the rocket around. This is very expensive and current rockets are 95% fuel by weight. However NASA is developing an alternative that uses the the sun to push the rocket around. These solar sails are made with large ultra-thin mirrors that use the light of the sun to push the sail around. These sails have to be reflective because when the light hits the said it has to be reflected. This they key because thanks to DeBroglie, we know that light has momentum and as the light changes direction
  8. Launch Time: 9:10am May 31st Team Members Present: All three members were there for launch but only 2 were there for the return landing Play-by-Play: Use initial rockets to break the atmosphere of Kerban, and decoupled with starter rocket, orbiting Kerban. Used secondary rockets to break orbit with Kerban and enter orbit with Duna, then broke lander off of remaining rocket. Left remaining rocket in orbit with Duna, and then landed on Duna with lander and 2 Kerbals. Had Kerbals jump around for a little bit, then reboarded the lander and took off until back in orbit with Duna. Used retrograde
  9. This year has gone fast. It seemed like only yesterday that summer ended and we started our senior year. This senior year has been the best year by far and now that it's almost over it's hard to realize that we're almost done. Physics this year has been a great experience. The independent units were probably my favorite units because I could do everything at my pace which was great until my pace was too slow and I found myself cramming to get everything done the last week. They have been an eye opening experience to how college is going to work because I'll have to set my own pace all the time
  10. Team Name: Habres Available Funds: 1,381,581 Vehicle Name: Blood Stag. Vehicle Parts List and Cost: Mk 1-2 Command Pod 1*1800 X-200 16 Fuel Tank 1*1800 Decoupler 2*600 Poodle Engine 1*200 X-200 32 Fuel Tank 8*6600 Radial Parachutes 6*700 XL parachutes 8*850 Flt-200 Fuel Tank 2*225 Atomic Rocket 2*1700 Clamp 2*280 Lander Can 1*950 Lt-2 Stru
  11. Just as a budget adjustment we had 201,581 and we got 1,000,000 for first satellite in stable orbit around a planet other than Kerbin and 180,000 for first non-Kerbin satellite (not space junk) so we now have $1,381,581.
  12. Real rockets work just the same as the model bottle rockets that we made for arts fest. Rocket engines instead of using water expel gases and the pressure that is used to expel these gases come from the burning of fuel.When the fuel is burn, the energy released increases the temperature of the gases that created when this fuel is spent. These super heated gases want to expand which causes the pressure to increase. As the pressure increases, the gases are pushed out the back end of the engine which because of Newton's third law of motion also push the rocket engine and everything attached to it
  13. A bottle rocket works because of Newton's third law of motion. As more air is pumped into the "tank" the pressure increases so that when the restraint holding the rocket in place is removed, the pressurized air forces the water out of the bottle. Newton's third law states that for every action there is an equal and opposite reaction. This means that water exerts an upward force on the bottle itself. This is what sends it into the air. A nose cone works by cutting through the air instead of the blunt bottom of the bottle forcing itself through the air which would increase drag. Fins help by sta
  14. I would like to change my previous statement of having never seen this equation to "having only seen it once a long time ago and not remembering it at all"
  15. So I was watching an episode of the Big Bang theory and in the background of the scene i was watching was a physics equation. It said F=dP/dt which is an equation that i have never seen to before and I wondered if it was true. On the board it went on to expand the equation to F=d(mv)/dt=m*dV/dt and since dV/dt=a F=ma which is the Newton's law that we all love and know. I just thought that this was an interesting and new way to look at a very well know equation
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