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About MrMuffinMan

  • 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 shoplift. However this person didn't manage to get a complete cage and the alarms went off. This is just a very different application of physics than we learn in class but it's still cool
  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 along with the index of refraction of the material to calculate the thickness. I don't really understand works but I'm sure I'll learn all about it when I start work.
  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 solve the riddle? website for this riddle http://physik.ph-gmuend.de/brain-teasers/
  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 second almost exactly
  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 it exerts an impulse on the said which accelerates the sail. Granted this force is tiny compared to rocket engines, but in space the the sail will accelerate as long as it sees sunlight which means it can go much farther without fuel on board.
  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 to push rocket and lander close together and then docked, moving Kerbals from lander to rocket. Disconnected lander, and then broke orbit with Duna, gained orbit with Kerbal, entered the atmosphere, and then landed in the ocean for a successful trip! Photographs: Time-of-Flight: 1yr 71d 21 h 50m 48s Summary: We were the First team to land on another planet and return safely. Opportunities / Learnings: We learned how to dock Strategies / Project Timeline: Next we’re going to Jool and it’s moons Milestone Awards Presented: First team to land on Duna and have a safe return. Available Funds: 1,381,581-155,730+1,500,000= $2,725,851
  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. And even when we didn't have independent units, Mr. Fullerton taught us, but it was our responsibility to look up in book the stuff we didn't understand the first time or ask him which happened a lot more times this year than any other. Mr Fullerton might of taught us Physics for the exam, but he also taught us what we are going to have to do for college and that is probably the lesson we all will remember in the next few years.
  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 Strut 3*240 Radial Monopropellant Tank 2*400 Advanced SAS 2*1100 RCS booster packs 4*450 Ladder 1*100 Barometer 1*200 Gravitator 1*200 Thermometer 1*200 Accelerometer 1*200 Photo Solar Panels 2*100 Jumbo 64 Tanks 7*12500 X-200 8 Fuel Tanks 7*900 Radial Decoupler 6*700 Main Sail Engine 7*850 Fuel Duct 8*250 Struts 38*250 Total Cost 155,730 Design Goals: This rocket is designed to fly to Duna, send the lander down to the surface then have it return to the ship in orbit which will take everyone home Launch Goal: We are trying to be the first people to land on another planet Pilot Plan: The main lifting stage will get the ship into orbit around Kerban and will have enough fuel to send on a course that will intersect Duna. Then the upper stage will be used to keep us in orbit around Duna while the lander will detach head down to the surface to collect samples. Then the lander will return to orbit and dock with the upper stage and will head back to Kerban. Illustrations: Safety Rep: Brendan will be approving this plan
  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 in the opposite direction.
  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 stabilize the flight via air flowing over them helping keep them and the rocket in line. Finally the parachute works by increasing the drag force caused by air so much that it slows the rocket down to a speed safe for landing
  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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