• Technology

    Navy Tests 32-Megajoule Railgun

    By Posted on 2.1.2008 18 Comments

    Um, wow. This video comes from a test firing of the Navys Elecromagnetic Railgun (EMRG), which was carried out yesterday at the Naval Surface Warfare Center in Dahlgren, Virginia. The gun—which generates a powerful electromagnetic field to hurl projectiles at extremely high speeds—is rated at 32 megajoules, but the railgun engineers have to work up to that number slowly: this test was designed to reach a record-setting muzzle energy rating of 10 MJ. (The actual number turned out to be 10.64 MJ, according to Collin Babb with the Office of Naval Research.) One big question this video begs is, what causes the giant fireball?

    11.17.2009 at 05:41am - Comment by ZipWizard

    This not only makes a great gun. You can also throw projectiles with a package inside up into orbit, for a space hotel, etc. I can see food to order being shot up to a space station restaurant. As far as a navy is concerned, 2 shells moving 5,000 mph that weigh only 10 pounds, fired at the water line of a 500 footer, and that ship is sinking. If you have 4 rounds aimed at a target, it would desegregate it. No conventional ship bow could withstand 4 30 million Jules fired into it, even if the armor were 10 feet thick. And it can't be that thick, because it would not float. But the very best part is the 200 mile range. They can sit in a minor sea lane and hit every major population zone in the area to devastating effect, especially if parked in international waters. Most cities are within 200 miles of the coast. No need to send in the planes, and no need for tactical nuclear weapons. A plane has limited ammo, but a rail gun can throw projectiles in a target area for days, until a bunker cracks, a small city is pounded to dust, or a mountain is sawed in half. And it is very hard to determine the origin of the projectiles since nobody can see them coming in. Buildings just start collapsing and burning, as if a bomb were lit from inside. In seconds, an entire street of buildings could disappear with no overpressure effects. It would be very unnerving. America will be able to keep their military edge.

  • Science

    Fermi Space Telescope Captures Glimpse of Space-Time

    By Jeremy Hsu Posted on 11.2.2009 23 Comments

    NASA's Fermi Gamma Ray Space Telescope spent a year collecting data from a thousand gamma ray sources and came up with this, the best map to date of the extreme universe. It also gave Einstein a shot in the arm by confirming the scientist's theories of space-time.

    11.10.2009 at 10:10pm - Comment by ZipWizard

    I have a theory here...maybe some physicist can listen up. I've had some education in black holes and gravitation in college, but it was in the 70's, where I got an A, but a lot has moved on since then. I've noticed that globular clusters, those blobs of stars that form in the galaxy, have a tendency to migrate to where the magnetic field lines bend into either the north or south poles of the galaxy. Yep. At least that seems to be a tendency where they gather near the extended field lines. I thought that was interesting and maybe there is a property in those field lines bending near a pole, that has been overlooked, such as simulated mass? I noticed in string theory that frequency equals energy, so this could also be where the magnetic field lines "sing" the loudest as they descend into a black hole, and that energy can also create an attractive power. Here is my theory, based on transferring the properties of the small onto the universe as fundamentals. If a muon may be nothing more than an electron with MORE mass, isn't it possible, it got its mass from an inflated magnetic field? Just hold on, before you tear this apart. If it can take on mass, couldn't it also lose mass? If there is something to this...since some scientists are saying the space-time continuum runs along the magnetic field lines (electrons spiral along the troughs of those space-time expressions), then perhaps mass can be expressed or stored in a magnetic field? This would be if gravity - which mass can express, is somehow influenced. We already have experiments where GRAVITY has been slightly reduced over the top of a spinning super conductor. And, in reverse, maybe mass can be subtracted from influencing outside events, sitting in a magnetic bubble. What you get, if true, is a zero mass engine. A spaceship that can reduce its mass influence to the universe outside the field, can easily accelerate to light speed, diluting time in the process, so humans can travel to distant planets within their lifetimes, but not be able to return in the same century, etc. (Time dilates) This way, nature would allow humans to seed the universe, but not return to their home world to influence its history. But, if they understand how to influence mass, they may also be able to bounce off the event horizon of a black hole and travel back to their original time, to arrive with minutes of when they left. OK, everyone - thoughts are welcome...and maybe I can spark a physics discovery here that has maybe been overlooked. wink.

  • Technology

    U.S. Army Plans to Send Giant Spy Blimp to Afghanistan

    By Anna Maria Jakubek Posted on 10.6.2009 13 Comments

    Next time you're in Afghanistan, make sure to keep an eye out for the U.S. Army's Space and Missile Defense Command's giant blimp-like surveillance airship. The Long Endurance Multi-Intelligence Vehicle (LEMV), as it's called, will be 250 feet long, autonomous, and able to float at up to 20,000 feet for an impressive three weeks at a time. As for its surveillance capabilities, a 40-foot-long stretch behind the cockpit will house a selection of spy gear, including a motion sensor and radar.

    11.10.2009 at 09:22pm - Comment by ZipWizard

    These will be great for supplementing FedEX after they build enough, huh? They can drop a ton of freight or more into your parking lot without transferring to a semi, which makes shipping much more efficient. I can see these being used to lift and ferry cargo. They were used in WWII effectively, without getting shot down. (Answering other's concerns.) And they are kept back from the front lines, and only parked over cleared territory. But they need a patrol of fighter jets to visit them around the clock, and I'm SURE on-board air-to-air is included, just in case...so they are not helpless, besides electronic jamming, the whole 9 yards. HEY, ever played Red Alert 3? The blimps are the LAST weapon that can be knocked down before doing major damage, in that war game. Hummm.

  • Technology

    Huge Texas Wind Farm's Turbines Will Be Made in China

    By Jeremy Hsu Posted on 10.30.2009 44 Comments

    Clean tech has seen a boost as the U.S. pours government funding into renewable energy, and China looks set to reap much of the benefits. Latest example: a Chinese wind-turbine company has just become the exclusive supplier for one of the largest wind-farm developments in the U.S.

    11.10.2009 at 09:04pm - Comment by ZipWizard

    It's a damn shame American companies are not tooled up to handle making lots of wind turbines. Where are the American jobs promised in all of this? I know a few $million$ is not going to boot the American turbine industry, but it sure would be nice if they could get 50% of the business. They really should of gone gong ho on this by now. I have an even BETTER idea. Why can't they build the horizontal type, so they do not kill as many birds? The BEST design I like it the one design that looks like a DNA protein spiral rising into the air. It is multi-directional, and on its vanes, they install solar cells that are sensitive to infrared, so it can make electricity in the afternoon on a cloudy day, or after sunset. Also, why can't we build the really huge horizontal wind turbines like they do in China, where the generator is on the ground, so weight is not a problem? These tall turbines seem cool, but I think horizontal ones can be put together at much lower cost, especially the megawatt variety.

  • Science

    Baguette Dropped From Bird's Beak Shuts Down The Large Hadron Collider (Really)

    By Stuart Fox Posted on 11.5.2009 86 Comments

    The Large Hadron Collider, the world's most powerful particle accelerator, just cannot catch a break. First, a coolant leak destroyed some of the magnets that guide the energy beam. Then LHC officials postponed the restart of the machine to add additional safety features.

    11.6.2009 at 10:33pm - Comment by ZipWizard

    My opinion: All they have invented is the world's 1st but bulkiest photon torpedo launcher. It makes a baby exploding black hole, that pierces the skin of the torus and jumps outside the magnetic bottle, traveling near the speed of light. It explodes a milli second later at some random point - BANG! You've got an exploding photon torpedo. I hope nobody gets hurt. The higher the voltage, the bigger the bang. The faster to the speed of light, the further it goes to its target. Let the games begin. What the DOD is going to ask, can they steer the dang thing, and make it light enough to mount on a space station. It's a fully re-loadable weapon that is more effective than a tactical nuke, because an electrically neutral exploding black hole can explode INSIDE its target. (Pillboxes beware, as well as bunkers a mile below ground! Nobody is safe!) Hummm. Just like when the atom bomb was invented - it's not going to yield much science until they get a grip on what it is. It either makes a big bang, or it melts a coil every-time, until they discover its true purpose, and can transcend the technology they have created, to build a defensive weapon against it, which took decades with nuclear weapons. Once the secret to its power gets out, the race is on with China and Russia to get one of their own. We could even see a race to the moon to catch the higher ground, so they can threaten with this thing. A 2 second lifespan (Earth Range) is not unreasonable, if the accelerator achieves 99.9999% percent of the speed of light or whatever. Just a thought.

  • Technology

    What Is The Worst Possible Disaster That Could Befall Earth?

    By Posted on 1.23.2009 29 Comments

    Texas-size asteroids make for exciting summer blockbusters, but when it comes to long-term damage, they're not the most menacing threat out there. Lurking at the edge of our galaxy are giant molecular dust clouds -- agglomerations of hydrogen gas, small organic molecules and minerals -- roughly 150 light-years across. If our solar system hit one, it would take 100,000 years to pop out on the other side.

    3.2.2009 at 04:53pm - Comment by ZipWizard

    Sorry about some typos in my methane post...gotta move on, so I posted my comments before I could edit more carefully. Have a nice day.

  • Technology

    What Is The Worst Possible Disaster That Could Befall Earth?

    By Posted on 1.23.2009 29 Comments

    Texas-size asteroids make for exciting summer blockbusters, but when it comes to long-term damage, they're not the most menacing threat out there. Lurking at the edge of our galaxy are giant molecular dust clouds -- agglomerations of hydrogen gas, small organic molecules and minerals -- roughly 150 light-years across. If our solar system hit one, it would take 100,000 years to pop out on the other side.

    3.2.2009 at 04:46pm - Comment by ZipWizard

    Hydrogen and dust from outer space??? Please. I think the solar wind would help clear our view of the sun from a thin dust cloud in passing. Free hydrogen would reacted with. Let's hope it's not with our atmosphere, or we'll look like Venus. Yeah, we should be vigilant...but most of the threats are something to watch right NOW. I don't want to spread doom, but some scenarios need to be considered. Speaking of hydrogen clouds...we should look closer to home at methane clouds. Unthawed hydrogen compounds (methane) being released from the BOTTOM of our own oceans are a much greater threat with global warming...which is virtually imminent at this point. (The GW component.) There is also methane, a much more powerful greenhouse gas, locked in permafrost, and most of any locked-in gases (methane and CO2?) have already been released from the melting pole ice, which is clearing to open water at the north pole as you read this. That has yet to be calculated. Some Canadians have mentioned usual atmospheric activity recently, so we should be concerned, like thunder with no clouds, etc. Just a thought. If any loose hydrogen combines with organics (even CO2 to make carbonic acid like in your colas) in the atmosphere, you can get organic acids, this can KILL most of the sea life. Bleaching of coral reefs are already underway, and it could clear surface microbes or certain crops. On top of that...methane is EXPLOSIVE...so if or WHEN a huge cloud drifts over a city, you'd witness nature's OWN answer to the weapons of mass destruction. The SMELL might WARN us first, if we're lucky...since hydrogen gas compounds will give off a very strong sewer smell...but will the warning be heeded??? Memories of Soddom and sodomy may be triggered, I'm sure, due to the smell. It's POSSIBLE the event in the Bible is exactly this type of event. So it's probably HAPPENED before. Will they evacuate in time? Or will the news services just register that various callers are complaining about unusual nasty smells...then the station goes blank, and 3 mins. later the viewer is blown apart by a 300 mph "nuke" type wind, triggered by lightening? I'll bet the 1st time that happens...caves will be in short supply. Let's get the CO2 sequestered and back in the ground NOW.

  • The Environment

    The New Smart Grid: 21st Century Tech for the 21st Century

    By Posted on 3.5.2009 5 Comments

    PopSci.com welcomes back Dr. Bill Chameides, dean of Duke’s Nicholas School of the Environment. Dr. Chameides blogs at The Green Grok to spark lively discussions about environmental science, keeping you in the know on what the scientific world is discovering and how it affects you – all in plain language and, hopefully, with a bit of fun. Now, PopSci.com partners with The Green Grok to bring you exclusive new blog posts a week before they hit the Grok's blog.

    2.27.2009 at 07:40pm - Comment by ZipWizard

    Addendum: A space beam from various power stations on Earth could also better coordinate with a space based power system, thus reducing infrastructure costs in future expansion(s). I hope this helped get a clearer picture on expanding our technology.

  • The Environment

    The New Smart Grid: 21st Century Tech for the 21st Century

    By Posted on 3.5.2009 5 Comments

    PopSci.com welcomes back Dr. Bill Chameides, dean of Duke’s Nicholas School of the Environment. Dr. Chameides blogs at The Green Grok to spark lively discussions about environmental science, keeping you in the know on what the scientific world is discovering and how it affects you – all in plain language and, hopefully, with a bit of fun. Now, PopSci.com partners with The Green Grok to bring you exclusive new blog posts a week before they hit the Grok's blog.

    2.27.2009 at 07:34pm - Comment by ZipWizard

    In my opinion: A national energy grid is fine, but it will need safegaurds so we cannot have a national "blackout." The High voltage DC trunk lines are so 20th century tech. A lot is wasted in heat, and massive ground electrocutions are a threat if there's a breach. Why not use a high powered LASER or intense microwaves instead? Speaking of waste heat, the LASER or micros are pure energy. If optics to send and receive the laser are free of contaminants, that sort of truck-line will not heat...much. To prevent any sort of trunk-line waste, or highly expensive land stations every so many miles, it could be beamed into space and bounced off a stationary satellite, which would slightly spread the beam on its way back down, so as not to destroy structures if it becomes uncalibrated, etc. (What a shame if all that power would suddenly shine on a nearby town.) I KNOW, have a "dead-man" switch setting. If the satellite loses its parallel connecting "communication" beam, it immediately shuts down the ground station until it can reconnect and recalibrate. The protocols would be military grade top-secret. Microwaves are a 2nd or interim choice until solar power converters can become more efficient. However, land optical lines are much safer UNDERGROUND than high voltage DC. Low voltage is fine underground...but moving past 100,000 vDC underground at high amps is a threat to nearby populations if breached. Of course, the military would LOVE such a setup, and the beam could be MANUALLY diverted or bounced around the world on a series of reflective satellites, until a target is reached. So, as you see, there are pluses and minuses to every invention. Perhaps, you could tell the military to "make their own," but I still see the redundant possibilities might still get built-in, for possible emergencies...such as a small asteroid, perhaps? HOW MUCH can be transmitted on a laser??? The limit is only in the technology. The amount of power that can be in a beam is nearly infinite, versus our WIRED technology. Just look at pulsars in space, or from the center of a black hole, to how power beams can be created naturally that dorf anything we can dream up.

  • Science

    The First Few Minutes After Death

    By Sam Barrett Posted on 10.31.2008 23 Comments

    After countless accounts of near-death experiences, dating as far back as ancient Greece, science is now taking serious steps forward to explore the nature of the phenomenon. A new project aims to determine whether the experience is a physiological event or evidence that the human consciousness is far more complicated than we ever believed.

    11.4.2008 at 02:37am - Comment by ZipWizard

    I have seen photographs in other magazines before that showed Kirlan photography. The advanced photography was started in Russia some years ago. Anyway, if you cut a leaf in 1/2, if you look at the Kirlan photography, the missing half still "shows," in a brilliant ghostly image for many hours or days. Photos of human fingers shows energy glowing around them in reds and blues, much like when touching an electrified static globe. I suppose if living things have an aura such as this...and the tissue is removed or dies, the aura remains. If the aura were located where the human head is, for instance, I imagine some of that energy being shown may hold the inter dimensional components of the mind. And once the aura of a human mind is free of the flesh, perhaps it is also free of space/time, and can witness events in the near future or past. According to gurus, this aura can also be trained to leave a living body for out of body travel, without death. Who are we to know if this aura can interpret sounds or light, and if it can absorb surrounding energy, it can continue on? If true, the body is merely a temple, and these auras can be transferred in some more advanced future, into artificial bodies. Just a thought.



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