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POPSWill NASA Test a Plasma Drive on the ISS? A plasma engine such as the VASIMR uses radio waves to ionize a propellant, and magnetic fields to accelerate or decelerate the resulting plasma to generate thrust. The VASIMR injects a gas such as hydrogen in to an engine that turns it in to plasma. The radio waves are now used to energize the plasma further as it moves through the engine. The plasma, now accelerated and heated, is focused and directed as exhaust using a magnetic nozzle.
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POPSExperimenting in a galaxy far far away While the readings confirm the laws of physics apply across the known universe, if it had been any other way, it would not only have been a surprise, but physics textbooks would have to be rewritten. Of course, the search has only just begun. The Radio Telescope is only a recent development, and much of what we know about the Universe, has been learned since the Hubble telescope became operational.
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POPS How The Stealth F/A-22 Raptor Works
The F/A-22 is the world's first stealth air-to-air fighter, designed to be unseen at long range and deadly in close-in air combat. It can also strike ground targets with precision accuracy. maneuverability in the air. Radar works by sending radio waves out from an antenna and collecting the waves that bounce back from any objects. On a radar screen in an aircraft or in a ground-based radar station, an airplane appears as a blip. The larger the aircraft, the larger the blip appears on the screen. Aircraft designers have worked for years to minimize the radar signature of an aircraft. If the radio waves are deflected or absorbed so they don't return to the radar antenna, then the airplane is invisible or could be mistaken for a flock of birds or other non-threatening object. Aircraft designers use a jumble of curved surfaces and other design tricks to deflect radar waves in unexpected patterns. Planes are painted with thick paint that can absorb radar waves instead of reflect th
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POPSBirth of Radio Astronomy This now includes seeing some of it visually as "snow" on televisions. Yet with the new transition to digital tv coming next year (in the U.S. at least), I wonder if "snow" will be a thing of the past?
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POPSLingering Southern resentment is the real problem
No one ever demanded of President Bush that he repudiate these hellfire and brimstone types, yet ... the ideologues are demanding something more of Obama. The hypocrisy here is large; I would not expect anything else from Krauthammer but Michael Gerson is a "person of faith." And surely he knows the danger of hypocrisy in that part of the public sphere where religion intersects with politics. I'm sure he knows much of the Gospel of Matthew by heart. .. let me remind of Matthew 23 verses 13-15. Each verse begins, "Woe unto you, scribes and Pharisees, hypocrites!" America needs no heavenly destroyer to revive itself, it needs people in Gerson's position to examine their consciences and stop being hypocrites. A good place to start would be for him to address the shocking statements made by white Christian preachers over the air waves every day. He might take advantage of the opportunity to repudiate them by name and renounce their help in electing Republicans to office. [/qu
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POPSNasa beams Beatles' song into space I thought our radio waves naturally radiated into space? So little alien buggers will hear the song, come to earth wanting to meet the Beetles, find out John Lennon has been murdered then get angry...and that will be the end of the world as we know it.
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POPSMavericks Surfers “We search for a big storm way off in the North Pacific, out past the international date line,” Sponsler said. “That’s the best cradle for a Mavericks swell. Waves start their lives as wind. The longer and stronger gales blow in the same direction, the larger and more powerful the seas that result.”
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POPSBig Waves - Brave Folks The image of the quintessential American surfer — a bronzed slacker in board shorts — may be firmly entrenched . . .
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POPSTransferring Data Through Your Body There's no practical reason I can think of to transmit data through someone's body...pretty soon enough everything will be wireless anyway. Still, pretty interesting idea, and it makes you wonder whether there might actually be a better way of transferring data than through radio waves or fiberoptics.
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POPS"Hillary haters," and now/today - hostage taking terrorist
This 'Hillary Haters," article is two days old. The hostage taking of campaign workers at her New Hampshire Presidential Campaign HQ is two hours ago. What to say? One thing to note is that warmongers, fascist, most Republicans, zionist, neo-cons, nazi's, KKK folks, etc. --- people with hate in their hearts -- are not nice. They don't play by the rules. They can be mean, ruthless, violent and destructive. Thus it's always difficult for "nice people," people who like the idea of developing alternative energy rather than killing over oil, or people who don't like USA torturing, believe in habius corpus rights, feels bad about helping the slow starvation and collective punishments of Gaza, etc....well, it's tought. "nice people," have to be as tough as "bad people." That sort of sucks but it's living in dreamland not to realize it. Obama life has been threatened. Now Hillary's headquarters attacked. We need to elect better leaders. http://www.americancitizenstogether.org
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POPSPioneering 'Heat Wave' Gun May Be Used In Iraq The aim was to spread the word that the device, nicknamed the Silent Guardian, is neither sinister nor dangerous. In an age when the US military has been dogged by allegations of torture at secret bases, such perceptions are crucial. I would think they are... though the thought of people being frazzled to ashes never even crossed my mind! :roll: The development of the weapon only became public after the Sunshine Project - a Texas-based group that campaigns against biological and chemical weapons - pushed for disclosure under the Freedom of Information Act.
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