Jump to content


Photo
- - - - -

Sailing Away


This topic has been archived. This means that you cannot reply to this topic.
6 replies to this topic

#1 Jangler

Jangler

    a head full of candy corn

  • HUDDLER
  • PipPipPipPipPipPipPipPipPip
  • 47,582 posts

Posted 14 November 2009 - 04:30 PM

http://abcnews.go.co...tory?id=9077536

Its designers call it LightSail-1. And if it works as advertised, the solar sail project would represent a baby step toward humanity's first starship.

Posted Image

This week, the California-based Planetary Society announced a new project to launch a small spacecraft propelled by a solar sail. In principle, the idea is simple: Use the sail to intercept sunlight, which presses on the sail much like wind on canvas. (The same pressure keeps the sun from collapsing under its own gravity.)

Initially a solar-sail craft builds momentum almost imperceptibly. But with no friction in space to resist its motion, the craft in theory should go faster and faster, as long as there is enough light to propel it. It requires little on-board fuel for course corrections, since the sails can be "trimmed" to change course, just as a sailboat's canvas is trimmed.


http://abcnews.go.co...tory?id=9037236

Four years after its first solar sail ended up in the ocean instead of orbit, The Planetary Society announced Monday that by the end of 2010 it will try again to launch a spacecraft that will be propelled by the subtle pressure of sunlight.

LightSail-1 is envisioned as the first of a trio of solar sail craft in a project boosted by an anonymous $1 million donation, according to the space advocacy organization co-founded by the late astronomer Carl Sagan.

"It's a low acceleration but it's continuous, whereas a rocket is a high acceleration but it ends quickly," Louis D. Friedman, the society's executive director, said in a telephone interview from Washington, D.C.

Eventually you'll have these missions lasting many years, reaching speeds approaching 100,000 mph, getting out of the solar system in five years instead of 25 years," he said.

The Planetary Society's first solar sail, Cosmos 1, never reached orbit. It was launched in 2005 aboard a converted missile fired from a Russian submarine beneath the Barents Sea. The launch vehicle failed and fell into the ocean.



#2 SMACKDAB

SMACKDAB

    Banned

  • Banned
  • PipPipPipPipPipPipPipPipPip
  • 3,373 posts

Posted 14 November 2009 - 04:35 PM

Lay-Away is back...and I'm putting 5 in my gift basket as soon as they become available!

:D

#3 Kevin Greene

Kevin Greene

    _Beat The Hawks_

  • HUDDLER
  • PipPipPipPipPipPipPipPipPip
  • 17,346 posts

Posted 14 November 2009 - 04:57 PM

Thought this was a Skew I'm leaving the Huddle forever thread.

#4 Squirrel

Squirrel

    Drink a beer and relax

  • ALL-PRO
  • 12,697 posts

Posted 14 November 2009 - 05:03 PM

I thought it was Margaritaville.

#5 Skew

Skew

    GOLD PREMIUM MEMBER

  • Moderators
  • 6,187 posts

Posted 14 November 2009 - 06:48 PM

Not sure if I ever tell you guys when I'm leaving and never come back.

I'll probable just go.

#6 Hawk

Hawk

    Huddler of the Decade

  • Moderators
  • 14,979 posts

Posted 14 November 2009 - 07:05 PM

patiently waiting!!!!!

#7 Happy Panther

Happy Panther

    Now even funnier.

  • ALL-PRO
  • 17,567 posts

Posted 14 November 2009 - 07:18 PM

What movie had a solar sailboat?


Shop at Amazon Contact Us: info@carolinahuddle.com