1,575 views

Watch
- Search Videos
  
  Advanced search »
- Submit a New Video
Discuss
About
- Try clicking on the various channels to see videos posted to that channel - if you're into music you can click the Music channel to get more music sifts - go on and explore! Use the "hotness" when you have opened the channel link to get videos that have gotten a lot of votes, or use "newness" to have a look at the new sifts.
  When browsing sifts you like, have a look at the Related Posts list to see other related videos, click the tags under the video title to see more sifts tagged with the same tags or have a look at other sifts from the same user in the More Posts By list. If the sifted video is in a play list, have a look at the play list to see other interesting videos the Sift users have linked together.
  Enter the Sift Lounge to chat with online sifters about anything and everything, or read interesting posts in the Sift Talk forum.
  The Top New Videos list is always full of interesting, current videos. It is always recommended that you have a look through the Top New Videos, but also have a look at these:
  - Upcoming Unsifted Videos - active video submissions that neither are published to the front page nor archived to the submitter's personal queue
- Have you seen a really funny, surprising, scary, interesting, cute or in any other way extra good quality video?
  Post and share it here - VideoSift is the best video aggregator on the Web, where we share, discuss, promote, and interact with the best videos out there on the web. Post it here, and share it with the large community of video-interested users. And - you are guaranteed to find more very good videos here already!
  Mind you, we only share videos you discover that someone else has made; if you "self link," by posting a video you have made, have posted or have interests in, you risk the ban hammer - read the posting guidelines before posting. The sift is NOT for promoting your own videos - it is for sharing videos others have made.
  Submit a Video Now »
Login

Demonstration of Nasa's Solar Sail (soon to be launched)

submitted by joemawlma

1 decade 6 years 4 months 1 week ago

Falcon 1 is set to take off as early as July 29, 2008. One of the "piggyback" payloads will be a 4 kg (less than 10 lbs) NASA satellite about the size of a bread box that can unfurl into a 10 meter square solar sail on orbit. This video shows the sail in action.

It took the nuclear powered Voyager probes 30 years to get to the edge of the solar system where they are still traveling outward further every day. Although slower to get started, a solar sail could potentially catch up with a Voyager spacecraft in a single decade using only sun. The radiation pressure on the mirrors provide a minuscule amount of thrust by reflecting photons.

7 Comments

Moving this video to joemawlma's personal queue. It failed to receive enough votes to get sifted up to the front page within 2 days.

*beg

joemawlma cannot send this video to Beggar's Corner because joemawlma does not have enough Power Points - ignoring beg request by joemawlma. (You can always purchase more Power Points.)

*beg

Sending this video to Beggar's Canyon to plea for a little attention - beg requested by original submitter joemawlma.

25 years for the realization of a technology, i first saw used in Tron!

good call my15, i forgot about that part in tron.

Discuss...

🗨️ Emojis & HTML

Enable JavaScript to submit a comment.

This website uses cookies.

This website uses cookies to improve user experience. By using this website you consent to all cookies in accordance with our Privacy Policy.