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Alexander Wittig

SpaceX founder files with government to provide Internet service from space - 0 views

www.washingtonpost.com/...5-a0dc-2b6f404ff5cf_story.html

technology space

shared by Alexander Wittig on 11 Jun 15 - No Cached
LeopoldS liked it
  • Alexander Wittig on 11 Jun 15
     
    Elon Musk is moving forward with space based internet service...
  • ...3 more comments...
  • Alexander Wittig on 11 Jun 15
  • LeopoldS on 11 Jun 15
     
    reading the qz article, it is not clear to me that google dropped out as one of the main investors in SpaceX? did I miss something?
  • jcunha on 12 Jun 15
     
    I attended a presentation by H. Hemmati, formerly at NASA's JPL, now at Facebook working to "connect the unconnected" during a panel session of the Workshop "Shining light on future space optical communications". I gather that they are targeting a combined strategy of HAP (with solar powered planes at 20-25 km), balloons and satellites. The rationale behind is that each solution is best suited for different population density zones, i.e. satellites while expensive (total cost of 100MUSD after Hemmati) are the only way to provide internet in remote zones, while balloons seem to be one inexpensive solution for densely populated areas. Funfact: he mentioned that the main drawback will be some crashes of HAP elements...
  • jcunha on 31 Jul 15
     
    Facebook announced they are ready to test of of their High Altitude Platform element, a drone of the size of a Boeing 737. See the new here http://phys.org/news/2015-07-facebook-ready-giant-drone-internet.html?utm_source=nwletter&utm_medium=email&utm_content=ctgr-item&utm_campaign=daily-nwletter. It seemed interesting for me that they are developing also a reliable optical communication between this element and scattered ground stations.
  • Thijs Versloot on 31 Jul 15
     
    Nice link, that thing is huge and I would love to see a drone that size fly. Also, Facebook's Aerospace Team? :)
Nina Nadine Ridder

Surprising similarity in fly and mouse motion vision - 2 views

medicalxpress.com/...arity-mouse-motion-vision.html

BIO science evolution biomimetics vision

shared by Nina Nadine Ridder on 30 Jul 15 - No Cached
  • Nina Nadine Ridder on 30 Jul 15
     
    Loosely related to an old ACT project on optical flow (if I remember correctly but even if not still an interesting read I think): "At first glance, the eyes of mammals and those of insects do not seem to have much in common. However, a comparison of the neural circuits for detecting motion shows surprising parallels between flies and mice. Scientists have learned a lot about the visual perception of both animals in recent years."
andreiaries

NASA Face in Space - 4 views

faceinspace.nasa.gov

space face

shared by andreiaries on 08 Jun 10 - Cached
  • Ma Ru on 08 Jun 10
     
    Even after reading this sentence: "NASA wants to put a photograph of your face on one of the remaining space shuttle missions and launch it into orbit." it's not clear to me what exactly they plan to do... anyone?
  • ...1 more comment...
  • Joris _ on 08 Jun 10
     
    I guess it is a symbolic way of flying the space shuttle for the last time! as JAXA does it with your name - if you want to - for all their scientific missions. Nice initiative indeed!
  • Ma Ru on 09 Jun 10
     
    Wow, they even mentioned it in the news on the Polish radio yesterday... What I am curious is if they really take the physical (or at least digital) photo and name to the orbit, or is this just, as you called it, "symbolic" ...
  • Joris _ on 09 Jun 10
     
    It is usually for real. Sometimes it is on a plate or slab, sometimes on a DVD, ... I will have my name on STS-134 :-)
pacome delva

Flights of fancy - 1 views

physics.aps.org/...PhysRevLett.104.220502

phy bio birds magnetic_field

shared by pacome delva on 08 Jun 10 - Cached
  • Could quantum entanglement help a flock of birds fly south for the winter? A team of scientists at the Akademie der Wissenschaften and the Universität Innsbruck, both in Austria, is looking at how concepts central to the field of quantum information—entanglement and coherence—play a role in the chemistry of magnetodetection that animals use for navigation.
Joris _

Solar plane takes off for 24-hour test flight - 0 views

www.washingtonpost.com/...AR2010070700325.html

technology

shared by Joris _ on 07 Jul 10 - Cached
  • The goal of the project is to have a solar-powered plane flying day and night without fuel
pacome delva

You Are Now Free to Move About the Insect - ScienceNOW - 1 views

news.sciencemag.org/...-now-free-to-move-about-t.html

bio flies optic_flow

shared by pacome delva on 24 Aug 10 - Cached
  • Researchers thought that flies chose their altitude based on optic flow, a phenomenon familiar to anyone who has ridden an airplane.
  • The team's observations, published online today in Current Biology, suggest that flies base their cruising altitude on horizontal edges and landmarks—such as table surfaces or tree tops—and not on how fast the ground is moving beneath them. The edge-tracking strategy may enable flies to keep tabs on possible landing spots.
  • This may be the general principle" for all flying insects, he says.
Joris _

Airbus Concept Has Weird Wings, Morphing Seats | Autopia | Wired.com - 6 views

www.wired.com/...airbus-concept-plane-2050

MAD technology concept

shared by Joris _ on 21 Jul 10 - Cached
LeopoldS liked it
  • it reflects what experts in aircraft materials, aerodynamics, cabin design and engines came up with after considering what air transport might look like in 2050
  • Seems safe to say there are some within Airbus who truly are allowed to imagine something beyond normal aircraft interiors.
  • Joris _ on 21 Jul 10
     
    what a ACT's exercise should look like...
  • ...1 more comment...
  • LeopoldS on 21 Jul 10
     
    honestly, if this is all they can imagine for 2050 then this is quite boring .... "Here we are stretching our imagination and thinking beyond our usual boundaries," they are probably not having enough of imagination yet ....
  • Joris _ on 21 Jul 10
     
    Maybe, you should propose this exercise to the team. You'll see there is not much imagination, unless, you consider imagination equals craziness (bullshit things ... and the too common blah blah in the act). I think this concept is an imaginative credible concept. "anything we might ever see" explains it well.
  • pacome delva on 21 Jul 10
     
    well, the article is not very detailed so it can be only "du vent" ! did they actually try if such an airplane can fly ??? what about the engine ??? i find the solar impulse (see post below) much more eco-friendly !!! I agree with Leopold that it's quite boring and stays in the mainstream of the production. I'm sure we can do much better !!! What about some really useful things like pills against the flight sickness, and some really good food in the plane ? haha not soon to happen with all the cost reduction. The future of air transport will be a plane without seats, stewards and perhaps even without pilot !!!
Joris _

Spaceflight Now | Breaking News | Sweden's Prisma satellites go their separate ways - 1 views

spaceflightnow.com/...11prisma

MAD technology space

shared by Joris _ on 13 Aug 10 - Cached
  • exotic green propellant maneuvering systems
  • In the two months since launch, controllers have powered up the satellites' navigation and formation flying equipment, tested its green propellant thruster, and successfully navigated around orbital debris threats.
  • a smorgasbord of payloads
Ma Ru

Dream job for Tobias and the like? - 2 views

www.bbc.co.uk/...science-environment-11479323

BIO fun student spider fly

shared by Ma Ru on 06 Oct 10 - No Cached
  • LeopoldS on 10 Oct 10
     
    there is no "and the like" ... when talking of Tobias !!! :-)
Joris _

The Telescope-Toting 747 That Sees More than Hubble | Popular Science - 3 views

www.popsci.com/...ing-telescope-sees-more-hubble

telescope

shared by Joris _ on 03 Mar 10 - Cached
  • Francesco Biscani on 03 Mar 10
     
    The list of reasons for going to space keeps on getting shorter...
Joris _

Robot mini space shuttle is go for April, says US air force * The Register - 2 views

www.theregister.co.uk/...x_37_go_for_april

MAD launcher space

shared by Joris _ on 15 Mar 10 - Cached
LeopoldS liked it
  • concept of operations development for reusable space vehicle technologies.
  • a robotic spaceplane able to remain in orbit for substantial periods before re-entering the atmosphere and coming in for a runway landing automatically
  • Joris _ on 15 Mar 10
     
    make you wonder when the FLPP will actually lead to something flying !
  • LeopoldS on 16 Mar 10
     
    I did not even know that the airforce continued the X37 project when it was cancelled at NASA ... interesting stuff indeed ...
Luzi Bergamin

Physics in a Crisis - 3 views

www.rqm.ch/physics_in_a_crisis.htm

phy LHC crackpot fun

shared by Luzi Bergamin on 30 Mar 10 - Cached
  • Luzi Bergamin on 30 Mar 10
     
    Luckily I'm far away from Geneva, but this has to be said today, when the LHC starts! No, not tiny black holes will eat us (what a nonsense!), but the supernovae energy will let LHC explode!!! Pacome, I expect you to debunk this with gratest care!
  • ...2 more comments...
  • pacome delva on 30 Mar 10
     
    wtf is this! As I read this morning in the newspaper (not even a scientific one), 1 TeV is the kinetic energy of a flying mosquito... so be careful ! It seems they already sloved every thing on this website: "At the Institute for Space Quantum Physics ISQP, it was already proved in 1991-1992 that dark matter is in magnetic fields as magnetic space quantum flux." This website is the biggest source of crackpots i have seen in a long time...! (http://www.supernovae-energy.com/)
  • Ma Ru on 30 Mar 10
     
    Come on guys, this website is hilarious! "The HAITI EARTHQUAKE (...) were impossible for the Institute for Space Quantum Physics (ISQP) to compute because on one single planet was on a common line or axis with the Sun: Venus."
  • Luzi Bergamin on 30 Mar 10
     
    Unfortunately, most information I have about the guy (Hans Lehner, a Swiss) is in German, his official homepage is http://www.rqm.ch/ According to EsoWatch he is the Swiss analogue to Dr. Mills and his Blacklight power. Lehner apparently founded a company, which should have produced a "Raum-Quanten-Motor" that -- of course -- produces energy out of nothing. The theory is based on spookey forces mediated by Lehneronen. 11 Million Swiss Franks (about 8 Million Euro) were lost when the company bankrupt. And the guy is selling new stocks on his homepage again... Lehner calls another crackpot named Oliver Crane Zweistein (from Einstein being "Onestone") and himself "Dreistein". Now he is looking for Mister or Misses Vierstein. Perhaps you should apply, good luck!!
  • Nicholas Lan on 30 Mar 10
     
    i like the first line of their supernovae energy technology document "Dear potential investor:"...
Luís F. Simões

Boeing probes international market for human spacecraft - 1 views

spaceflightnow.com/...10cst100

human spaceflight commercial spaceflight

shared by Luís F. Simões on 11 Feb 11 - No Cached
  • The aerospace powerhouse is designing and testing systems for its CST-100 space capsule, a craft the company says could begin flying astronauts to low Earth orbit by 2015. It will launch on existing rockets to lessen development risk and costs.
  • "The spacecraft that we're designing is rocket-agnostic. It would be possible to sell this like a commercial airplane to countries who perhaps have a launch vehicle who would like to launch it in their own country."
  • Luís F. Simões on 11 Feb 11
     
    ...and hitting the news in the same day: A Rocket Built from U.S. and European Parts "A new rocket that would combine parts from NASA's canceled Ares I rocket as well as the Ariane 5 , a well-proven European satellite launcher, could provide a low-cost option for taking crew and cargo to the space station. The rocket proposal was announced this week by ATK, an aerospace and defense company that manufactures the solid rocket motors for NASA's space shuttles, and Astrium, the European company that makes the Ariane 5. They say the rocket, called Liberty, would be ready for flight by 2015." "Other commercial companies, including Boeing and Orbital Sciences Corporation, are looking to use low-end versions of the Atlas V to carry the capsules they are building. Liberty could carry any capsule at a cost less than that of the Atlas V, according to ATK." Look! Competition! :)
pandomilla

Plant has a bat beckoning beacon - 2 views

www.bbc.co.uk/14328999

plant bio science

shared by pandomilla on 02 Aug 11 - No Cached
LeopoldS liked it
  • pandomilla on 02 Aug 11
     
    A rain forest vine has evolved dish-shaped leaves to attract the bats that pollinate it, scientists have found. Tests revealed that the leaves were supremely efficient at bouncing back the sound pulses the flying mammals used to navigate. When the leaves were present the bats located the plant twice as quickly as when these echoing leaves were removed.
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