Skip to main content

Home/ Indie Nation/ Group items tagged flight

Rss Feed Group items tagged

Filter: All | Bookmarks | Topics Simple Middle
John Lemke

Robot hummingbird passes flight tests (w/ Video) - 0 views

www.physorg.com/...-hummingbird-flight-video.html

robot hummingbird passes flight 2011 technology writeabout

shared by John Lemke on 28 Feb 11 - No Cached
  • John Lemke on 28 Feb 11
     
    The Hummingbird's bird-shaped body is removable but it gives the bot an uncanny resemblance to a real hummingbird. The vehicle can hover and maneuver just like the bird. The ornithopter can fly into buildings under the control of an operator flying the spybot with the help of a feed from its tiny video camera. The prototype is capable of flying at speeds of up to 18 km/h (11 mph) and weighs 19 grams, which is about the same as an AA battery.
John Lemke

NASA Hosts STS-133 Song Contest Winner Live in Mission Control - Yahoo! News - 0 views

news.yahoo.com/...DC61153_1

nasa music song wake-up STS-133 writeabout Spaceflight technology newspacerace tech

shared by John Lemke on 09 Mar 11 - No Cached
  • John Lemke on 09 Mar 11
     
    "Blue Sky" was written by the band as a tribute for Discovery's return to flight mission (STS-114) in 2005. The song received the most votes in NASA's "Top 40 song contest." The top two songs were played as wakeup music for the shuttle crew. [ For complete coverage of politics and policy, go to Yahoo! Politics ] Receiving 722,662 votes (29 percent), "Blue Sky" outdistanced the "Theme from Star Trek." The theme received 671,133 votes (27 percent) and was played to wake the crew Monday morning with a special introduction by William Shatner, the actor who played Captain James T. Kirk.
John Lemke

Ask Ethan #55: Could a Manned Mission to Mars Abort? - Starts With A Bang! - Medium - 0 views

medium.com/...ion-to-mars-abort-d3995c855466

2014 exploration space spaceflight spacecraft spaceexploration spacetravel mars 2014.09.29-TNN

shared by John Lemke on 28 Sep 14 - No Cached
  • No humans have ever traveled farther away from Earth than the crew of Apollo 13 did, as they circled around the far side of the Moon close to lunar apogee, achieving a maximum distance of 400,171 km above the Earth’s surface on April 15, 1970. But when the first manned spaceflight to another planet occurs, that record will be shattered, and in a mere matter of days.
  • The way we currently reach other worlds with our present technology — or any remote location in the Universe — involves three distinct stages:The initial launch, which overcomes the Earth’s gravitational binding energy and starts our spacecraft off with a reasonably large (on the order of a few km/s) velocity relative to the Earth’s motion around the Sun.On-board course corrections, where very small amounts of thrust accelerate the spacecraft to its optimal trajectory.And gravity assists, where we use the gravitational properties of other planets in orbit around the Sun to change our spacecraft’s velocity, either increasing or decreasing its speed with every encounter.It’s through the combination of these three actions that we can reach any location — if we’re patient and we plan properly — with only our current rocket technology.
    • John Lemke
      John Lemke on 28 Sep 14
       
      How we can do it now, if we plan right.
  • The initial launch is a very hard part right now. It takes a tremendous amount of resources to overcome the Earth’s gravitational pull, to accelerate a significant amount of mass to the Earth’s escape velocity, and to raise it all the way up through the Earth’s atmosphere.
  • ...2 more annotations...
  • The most optimal one for a one-way trip to Mars, for those of you wondering, that minimizes both flight time and the amount of energy needed, involves simply timing your launch right.
    • John Lemke
      John Lemke on 28 Sep 14
       
      The cheapest and the fastest. The one way ticket option.
  • When a planet orbits the Sun, there’s a lot of energy in that system, both gravitational energy and kinetic energy. When a third body interacts gravitationally as well, it can either gain some energy by stealing it from the Sun-planet system, or it can lose energy by giving it up to the Sun-planet system. The amount of energy performed by the spacecraft’s thrusters is often only 20% (or less) of the energy either gained-or-lost from the interaction!
    • John Lemke
      John Lemke on 28 Sep 14
       
      The transfer of energy involved to change speeds.
John Lemke

Shuttle operator may propose commercial flights - USATODAY.com - 0 views

www.usatoday.com/...1-02-05-space-commercial_N.htm

wroteatindienation Spaceflight newspacerace 2011 woteabout commercial shuttle nasa

shared by John Lemke on 25 Feb 11 - No Cached
  • John Lemke on 25 Feb 11
     
    Starting as soon as 2013, after construction of a new external tank, the lead operator of NASA's shuttle fleet proposes to fly twice a year with Atlantis and Endeavour at a cost of under $1.5 billion a year.If supported, the plan would reduce an anticipated gap of at least four years between launch of the last shuttle mission this year and availability of new privately run crew taxis, a period during which astronauts will depend on Russian spacecraft to reach the International Space Station.
John Lemke

Rock Band Serenades Discovery Astronauts With Out-of-This-World Music | Space Music, As... - 0 views

www.space.com/very-astronauts-rock-band.html

music song wake-up STS-133 writeabout technology Spaceflight nasa rock serenades

shared by John Lemke on 09 Mar 11 - No Cached
  • John Lemke on 09 Mar 11
     
    Big Head Todd & The Monsters
John Lemke

Dotcom Faces Jail Following Application to Revoke Bail | TorrentFreak - 0 views

torrentfreak.com/lication-to-revoke-bail-141117

2014 indienationnews jail DotCom Ki9mDotCom Mega bail law legal technology

shared by John Lemke on 17 Nov 14 - No Cached
  • a bail revocation application is underway which could put back behind bars as early as next week.
  • Last week it was revealed that his New Zealand legal team had backed out of their arrangement to defend the Megaupload founder.
  • A full report on developments isn’t possible due to a news blackout, but Crown Prosecutor Christine Gordon told the Court that an application had been made to have Dotcom’s bail revoked after an apparent breach of conditions.
  • ...3 more annotations...
  • In the meantime, apparently considering him a flight risk, Judge Nevin Dawson has taken the decision to clamp down on Dotcom’s movements ahead of next week’s hearing.
  • banning him from using his helicopter, Dotcom is forbidden from using boats and undertaking any travel whatsoever by sea. He must stay within 80km (50 miles) of his home and report to police every single day, rather than his previous weekly check-ins.
  • One interested firm said it would need 120 days just to look over the case to see they can help, a serious problem when the extradition hearing is scheduled for February and has taken 18 months to prepare. Today the Crown said it was prepared to give Dotcom an extra month by postponing the hearing until March, but that was overruled by the Judge who said that it would now take place in early June.
1 - 6 of 6
Showing 20▼ items per page