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bobbyburns

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Everything posted by bobbyburns

  1. Team Name: Axburns Inc. Available Funds: $27,800 Vehicle Name: Atlantis I Vehicle Parts List and Cost: Mk1-2 command Pod ($1800), Advanced S.A.S. Module ($1100), Rockomax Brand Decoupler ($200), Rockomax x200 32 Fuel Tank ($6600), Rockomax Jumbo 64 Fuel Tank ($12500), Rockomax "Mainsail" Liquid Engine ($850), Rockomax "Poodle" Liquid Engine ($600), Mk 16 XL Parachute ($850) Total Cost: $24,500 Design Goals: We want to incorporate two engines and fuel tanks to practice stages (specifically firing the parachute, decouplers, and engines at the right times) Launch Goals: Achieve Stable Orbit
  2. Launch Time: 2:00PM EST Team Members Present: Katelyn, Bobby Play-by-Play: Launch Start: Straight up, no issues. About one minute in, at 0m/s, decoupler fired and screenshot taken. Booster separates from pod and parachute. Since we set the parachute and decoupler activation on the same stage setting, the parachute fired prematurely and it was, well, a SLOW ride down, but our Kerbal was happy and enjoying the ride. Photographs: We need to check our screenshots which are on the school computers. Time-of-Flight: We need to check our screenshots which are on the school computers. Summary:
  3. Did I just get hit with a dump truck or did I just take the AP Physics C exams? Turns out, I took the exams. Yes, they're over....and with a massive sigh of relief, I can move on with my life and enjoy the rest of my senior year. But I must be honest...they were the hardest exams I have ever laid my eyes on, and it came as a wake up call to me that, yes, maybe I DO have to work harder in future physics courses. This year in physics, although rough academically, taught me that one cannot simply understand a concept with ease at this level (with a few exceptions...) So as I move
  4. I'll let you know when I put it up for sale.
  5. So, It's been a month since MH370 disappeared. Technically, the pings should've stopped by now, but it seems that the black box batteries haven't died yet. But what really is a black box anyway? It's a NEON ORANGE rectangular object. The box holds critical instruments, like an altimeter, airspeed indicator, attitude indicator, control positions (as in what the pilot was doing with the plane at that time), time of day, etc. The second part of the data recorder is the Cockpit Voice Recorder. This thing records that last two hours of audio spoken in the Captain and First Officer's
  6. Our planet has a lot of gold, silver, diamond...you name it. But it's nothing. Believe me. In 1999, UC Berkeley researchers made a high value discovery (no pun intended) by showing that Methane (which is in HIGH quantity on Neptune and Uranus) can be converted to diamond (like carbon is) under intense heat and pressure. The liquid methane, cooled with liquid nitrogen, was placed in a diamond anvil cell and squeezed to between 10 and 50 billion pascals (gigapascals), or about 100,000 - 500,000 times atmospheric pressure. They then zapped it with a laser (creating the necessary h
  7. For the purpose of logic, I will ignore spacecraft because they already hold speed records for anything man made. Because they're awesome. Okay, so, our first category is Human-Powered Aircraft. No engine, just a dude flying himself in a glider. Some designs include the "wrapped rubber band" method but on a larger scale. To be honest, this record is pretty pathetic. At a whopping 19.8 mph, MIT's Monarch B human powered aircraft holds the record. *Cue streamer and confetti* Moving up in coolness is the Glider category. These aircraft are actually extremely interesting, in that
  8. Some new research from George Washington University dived into the mysterious techniques of flying snakes, and how that actually seem to dart through the air. Could these tactics be used today to solve mechanical issues? Possibly. What the researchers did seems a little odd, but hey, it got results. Their tactic was to launch the snakes off actual cranes (don't worry, they can FLY) and observe their gliding abilities. Just for context: A normal aircraft will gradually increase lift as the angle of attack is increased, and then once the angle of attack reaches the "critical" angle,
  9. Here's a weird one... Through a study at the University of Washington, researchers have found that, when attacked, Fruit Flies perform the evasive maneuvers similar to those of a modern fighter jet, a seemingly new relation between technology and nature. When a shadow or other threat was seen by one of the Flies, it would roll rapidly on its side, and then execute a tight turn to end up flying in the complete opposite direction. This tactic is the fundamental maneuver in modern day air forces, and it makes complete sense. Manmade aircraft share the same basic structure with flying
  10. Recently this year in France, a team of researchers conducted an experiment with seismic waves, and were able to slightly deflect them. Could this be the start of a new age in which we can avoid catastrophic earthquakes and maybe even tsunamis? It's quite the possibility. Using "cloaking" devices and meta materials, the researchers hope to someday cloak "desired" or important geological areas with the cloaking material, to fend off (reflect, to be specific) seismic waves, therefore significantly reducing any damage to the area. The cloak would in theory deflect the waves to a sparsely po
  11. We see it everywhere in the media, real life, and sometimes it can even happen to you. The sad, terrifying act of being slapped in the face. Aside from hurting, what are the actual physics behind being unfortunate enough to get slapped? 1) Shown in slow motion, your face has incredibly present properties of intertia. If you look at the video, you can clearly see the skin and tissue stay put while the actual skeletal tissue underneath begins to move. This is because the dense bone moves, eventually dragging the rest of the tissue along with it. The force of friction applied throughout t
  12. Yo Dawg, Grammar heheheheehhe
  13. This March, the F-35 Lightning II made its first public demonstration at an air show. The U.S. Military is expected to purchase over a thousand of the new jets in total, eventually being put in service with the Navy, Air Force, and Marine Corps. The Air Force version, the F-35A, will be the lightest and most agile. The thrust to weight ratio is over one, meaning that the engine produces more thrust (191 kN!) than the weight of the aircraft. In other words, it is able to speed up while flying 90 degrees to the ground...straight up. The Marine Corps version, the F-35B, is the most power
  14. MEGA ULTRA SUPER DEEP FIELD IMAGE...maybe you could get it in 3D?! Very interesting, nonetheless!
  15. Truly interesting. Sadly, the video is blocked by the internet filter. Where is society going....
  16. We learn about tectonic plate motion in Earth Science, but I never thought I'd hear about it in the present day. Apparently, it happens faster than I thought, and is extremely visible. A small patch of land off the coast of Japan sprouted from the sea last November, due to volcanic and seismic activity in the "Ring of Fire" region known to scientists. The island continued to grow, faster than expected, and finally collided with a much larger island. The outcome? One big island! The region, now called Niijima, sits hundreds of feet above sea level, to the astonishment of researchers. The
  17. Earlier today, April 7th, it was announced that a U.S. Navy vessel had confirmed that a "ping" was received by its underwater receiver. What does it mean, and does it guarantee that we've finally put a close to this awful mystery? When an aircraft as large as the 777 goes down (like Asiana 214), there are dozens of mechanisms that trigger, designed to allow searchers and rescuers to locate the aircraft. In this case, the 777 has many "pingers", or small radios that broadcast weak signals of 37.5 kHz. Designed to broadcast the same signals (about one "ping" per second), the batteries di
  18. Personally, I've resorted to the old "chains" and "studs" method to tackle the snow. It's not great for gas mileage, but it works.
  19. Well that's a shame. I was planning on ruining some tourists' days with my penny dropping skills.
  20. If you still think that the Titanic is the largest ship ever built...well...that's SO 1912. There're some huge ships out there (mainly cargo), and they make the Titanic look like a twig. The Seawise Giant statistically is the largest ship - ever. The crude oil tanker was built in 1979, and was sunk during the Iran-Iraq War before being repaired and brought back into use. Empty, the ship weighed 650000 tonnes, or 1.4e9 pounds. Unable to navigate the English Channel, Panama Canal, and other water ways, the ship was easily regarded as the largest one built. It was decomissioned in 2
  21. Personally, I had never really known my facts about this. To be honest, I wasn't even sure if the U.S. was the only country to have put men on the moon. But, from some hasty research, here's why nobody else has been there: 1) The USSR DID in fact have plans to send a man to the moon. The N-1 Rocket (Saturn V's competitor) was prepped to serve as the propulsion for the missions, but a series of catastrophic failures led to the USSR's decision to halt the program. It was officially cancelled in 1976. 2) 95% of nations are fiscally unable to have a lunar program 3) Preliminary, basic inf
  22. The largest fast food chain in the history of mankind is...well...massive. With more than 34,000 locations worldwide, McDonald's is awesome and awful at the same time. Ignoring the politics, let's look at the physics! On an average day, 300,000,000 people around the world will consume food from McDonald's. The average amount of calories on the McDonald's menu is 500 calories per meal. Let's say that each person buys a meal. Here's where it gets gross. Worldwide, humans consume 1.5e11 calories of McDonald's, PER DAY. That's 630 GJ (giga-joules). That's also 1111111111
  23. Maybe I'll write a post just about cows...*suspense*
  24. The boring white orb that aimlessly spirals around Earth hasn't been stepped on by man since Apollo 17. But that doesn't mean we're done with it...at all. Here are five things that you (maybe) didn't know about our one and only moon: 1) NASA plans to send a satellite to the lunar surface and dig deep enough in hopes of finding...you guessed it..water! They speculate that there is a frozen layer of it underneath the surface. 2) The Moon will eventually leave us. Using laser reflections from mirrors left on the moon by Apollo missions, scientists have accurately determined the distan
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