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  1. Re:Ship landing? on SpaceX Plans Drone Ship Landing On January 17th (nbcnews.com) · · Score: 1

    The point is to recover the stage for easy future use. How easy will it be to reuse a stage which has been floating in the sea for several hours (minimum).

    Also, a longer term plan is to be able to touch down on land, the sea provides a good environment to practice soft landings because when you fail you are a really long way from any people/infrastructure and because with the motion of the landing ship, once you can reliably do sea landings, surface landings should be relatively easy

    Also the reason for an ocean based landing is so the booster does not have to do a U turn to come back to the take off location. This means that Space-X can launch a larger payload because they don't need as much fuel for the return. Or do it cheaper.

  2. Re:How do they fare in colder climates? on Are We Reaching the Electric Car Tipping Point? · · Score: 1

    The actual battery lifetime of service is extended in cold weather climates compared to hot climates. Running a battery 'hot' is much worse for it's life cycle than just getting less range in the cold.

  3. Re:more likely from Kenya than Canada on What Will It Take To Run a 2-Hour Marathon? · · Score: 1

    I live in Saskatoon. I guess it could be just above freezing. In ideal conditions. Could the route be just a straight line course with the wind? Pretty easy to do here.

  4. Cogntitve bias on The Flaw Lurking In Every Deep Neural Net · · Score: 2

    This seems to be almost a form of cognitive bias as defined and studied by Tversky and Kahneman. I direct you to : http://en.wikipedia.org/wiki/L.... Or as previously pointed out optical illusions seem to be an equivalence.

  5. Re:misleading title on Elite Violinists Can't Distinguish Between a Stradivarius and a Modern Violin · · Score: 1

    That was a different test which is referenced in this test. This present test purports to address the deficiencies. Which it does quite definitively.

  6. Re:Living Cells... I call BS. on 43,000-Year-Old Woolly Mammoth Remains Offer Strong Chance of Cloning · · Score: 1

    It is possible, and it has been done. But it takes a specialized organism (bacteria, maybe frogs, some insects) or some way to prevent ice crystal formation... And a mammoth dis not have this advantage. Your references require some quite advanced technology that was not around (that I know of) 43000 years ago. A nicely frozen steak is not viable tissue.

  7. Re:Living Cells... I call BS. on 43,000-Year-Old Woolly Mammoth Remains Offer Strong Chance of Cloning · · Score: 1

    Let me correlate your experience with this story: Likely dead before freezing, nope. Cells in culture - nope. Step down freezer - nope. Liquid nitrogen storage: nope. And unless you are a vampire or alien, your have not stored them for 43,000 years...

  8. Living Cells... I call BS. on 43,000-Year-Old Woolly Mammoth Remains Offer Strong Chance of Cloning · · Score: 1

    Living cells - no way. Even if frozen for a few seconds cell die. That's what 'frostbite' is, then your fingers/toes/nose turn black and falloff... And saying it's better preserved than something buried for 6 months! Wow - things rot in my fridge in days.

  9. Ask for Photo ID on Death Hovers Politely For Americans' Swipe-and-Sign Credit Cards · · Score: 1

    I sign my card (as required by the card issuer) then print "Ask for Photo ID". When the vendor looks at the back they always ask for photo ID. Do they always look at the back/signature area? Not always.

  10. Re:Very interesting, but on Oldest Human DNA Contains Clues To Mysterious Species · · Score: 1
    The process is discriminatory in the sense that whatever there is a greater amount of to start with will be replicated/amplified at a faster (also) exponential rate.

    Also the samples are taken from the inside of bone/fossilized tissue that has undergone quite extensive cleaning prior to grinding/crushing and processing. It is possible though for contamination to occur at almost any point in the process.

  11. DRM is applied on Book Review: Secret History: the Story of Cryptology · · Score: 2

    $57.00 for the Kindle version??? Wow.

  12. Re:Boy, will UH-Hilo be surprised! on Construction of World's Largest Optical Telescope Approved · · Score: 1

    It does need to get built, then serviced, etc. There will be some spin-off in construction and maintenance jobs locally. Surely it can't be all built on the mainland then shipped and put together? The Keck's building is decent in Waimea. Any ideas of where the control building will be for this?

  13. Jupiterfoundation - spinoff research on Ocean Robots Upgraded After Logging 300,000 Miles · · Score: 4, Informative

    They also do some very interesting projects with the Waveriders and with cetacean (whale) research at the Jupiterfoundation.org. You can listen live to whale sounds coming from Hawaii http://www.jupiterfoundation.org/new_bw_liveaudio_hawaii.html. The Waveridrers were actually a spinoff from the original Jupiter Foundation.

  14. Re:Hope no one hacks our entire Air Force one day on Future Fighters Won't Need Ejection Seats · · Score: 1

    The whole point of drones is that you're not putting your own soldiers at risk, so you don't care if it gets shot down. That only costs money, and the military has as much of that as it wants.

    Your first sentence is somewhat valid, the second not as much. One could say it depends on the war. Most major conflicts are resolved through economic means especially being able to build things faster than the other nation-state is able to destroy them. So saying it 'only costs money' is not true. Money is the ability of the nation to build and supply itself or other nations with product or services. If the manufacturing of these drones becomes all consuming (literally for the economy) then this could result in the need to cease the conflict.

  15. Re:Animal porn? on Finnish Minister Wants To Expand Pornography Censorship · · Score: 1

    Now that is disgusting!

  16. Animal porn? on Finnish Minister Wants To Expand Pornography Censorship · · Score: 4, Funny

    I think animals should be able to watch whatever they wish...

  17. Re:Disappointed...thought he meant a "space gun" on The Science Behind Building a Space Gun · · Score: 1

    As in a "gun" (weapon) used in space, which is to me a MUCH more fascinating engineering and design problem. In space, inertia and recoil are a bitch.

    Missles probably impractical because they rely on aerodynamic forces to steer (nozzle alone isnt enough to change course/ uses too much fuel), whch leaves us energy and projectile weapons. Turrets can't whip around. Anything kinetic needs to dissipate the recoil which will favor recoilless designs, but those have their own complexities (current designs still have -some- recoil, which while negligible on the surface would have a magnified effect in space). the classic problem of what to do with the heat buildup.

    I honestly think space combat will favor a design that is the fusion of two "obsolete" technologies, that of battleship and bomber, though i'm thinking more medium/dive attac bomber. the battleship classic standard is that of dishing and taking damage; this translates to a large mass, and more mass has advantages for absorbing both recoil and heat. the bomber side from the concept of lobbing essentially dumb munitions (bombs or "depth" charges) on a calculated physics trajectory. Though the trouble there, is there no fluid medium to tranfer the energy, so the munition either absolutely must impact the target directly, or cast out a large amount of shrapnel (which would complicate the battlefield for the attacker too).

    The list goes on. Fascinating.

    I think this is what you want: http://www.foreignpolicy.com/articles/2012/09/28/aircraft_carriers_in_space

  18. Re:Getting worse and worse on Making Earbuds That Fit (Video) · · Score: 2

    Very true. I can read a lot faster than any video can present 'information'. I just skip any video like this one (thank you Adblock/NoScript). I wonder weather the proliferation of video is to keep eyeballs on the site for longer or due to the regurgitated pap that passes for video journalism. But likely due to the horrible reading comprehension and laziness of some people (read key demographic that sells advertising).

  19. Re:This this not evolution on Humans Evolving Faster Than Ever · · Score: 2, Insightful

    Well, that would not be necessary, Mr. President. It could easily be accomplished with a computer. And a computer could be set and programmed to accept factors from youth, health, sexual fertility, intelligence, and a cross-section of necessary skills. Of course, it would be absolutely vital that our top government and military men be included to foster and impart the required principles of leadership and tradition. Naturally, they would breed prodigiously, eh? There would be much time, and little to do. Ha, ha.

    "Now, wouldn't that necessitate the abandonment of the so-called monogamous sexual relationship, I mean, as far as men were concerned? Regrettably, yes. But it is, you know, a sacrifice required for the future of the human race. I hasten to add that since each man will be required to do prodigious... service along these lines, the women will have to be selected for their sexual characteristics which will have to be of a highly stimulating nature."

  20. Re:Needs some background research on Behind the Scenes At NASA's Mission Control Center · · Score: 1
    The 1994 Murray and Cox 'Apollo' is available as a Kindle version for those interested. Not Subtitled - if you try to find the subtitled version it is only in out of print paperback.

    From TFA:

    "In the movies, a spacecraft launch is often accompanied by bombastic music and the seat-juddering bass of rockets thundering, with shots of flight controllers frantically mashing buttons intercut with shaky-cam special effects of the launch vehicle clawing its way skyward. I asked Sy about what a person actually experienced while sitting at a console during launch, and it turns out that reality, again, is a very different place from fiction."

    The author should learn what he's talking about - the room usually shown during launch (particularly during Apollo 13) is the LCC, not MOCR. The LCC is located adjacent to the VAB at Cape Kennedy and controls the testing, checkout, launch, and flight of the vehicle until it clears the tower, at which point the MOCR takes over.

    He's also seems unaware that there's any media other than mini-series and fiction... If you're really interested in the MOCR, and wish for a less slack-jawed account, try and find a copy of Murray & Cox's Apollo (sometimes subtitled "Race to the Moon"). (Hard copies are expensive and collectible sadly.) In 1994 was Apollo along with Lovell's Apollo 13 that first actually discussed the MOCR in detail and kicked off the modern wave of more serious and less starry-eyed books about the Apollo Program.

  21. Re:Robert J. Sawyer on Ask Slashdot: Mathematical Fiction? · · Score: 1

    I second those by R.J.Sawyer. Not as 'heavy' as Greg Egan's work but good reads.

  22. Spin on Felix Baumgartner's Supersonic Skydive Attempt · · Score: 2

    Looks like for a while in free fall he was actually in a spin and admitted to passing out. You could see the flickering/tumbling of his image on the video feed from the ground. Managed to pull it out though.

  23. Re:Article is wrong, guy used a thumb drive on Canadian Spying Case Proves Floppy Drive Isn't Dead Yet · · Score: 1

    It is also interesting that supposedly he did not actually transmit the data he stole directly to his handlers. He would write a synopsis (mostly about Russian mobsters) and send that via email. It couldn't have been that much raw data, unless the data itself was somehow detectable in an email or attachment via CSE or NSA.

  24. Re:Rail System on NASA's Giant Crawler-Transporter Is Getting an Upgrade · · Score: 2

    What's the cost of maintaining (and inspecting) a rail system in an area prone to hurricanes?

    The Crawler travels a (mostly) gravel road.

    Another interesting fact... The gravel roadbed utilizes a special Tennessee (?) gravel that is much less prone to sparking than the usual stuff.

  25. Re:A class act on Astronaut Neil Armstrong Has Died · · Score: 1

    Agreed. But most of the training was about getting there and back again. And a you mentioned, it was a struggle to get training on the science of geology, etc. at the risk of getting flamed: engineering is not (ncessarily) a science.