Identify this Celestial Body

Embiggen.

Phil Plait @ Discovery Magazine explains:

The Sun’s surface puts out light at all wavelengths, but the surface isn’t solid. It’s a gas, and it tapers off with height. Normally, a thin gas in space emits light at very specific colors as electrons jump from one energy level to another in the individual atoms. But compressed gas in the thicker, denser part of the Sun mashes together all those energies, spreading them out, so it emits white light (that layer of the Sun is called the photosphere). Above that layer, where the gas is thinner (in a layer called the chromosphere), the hydrogen does emit light at specific colors. One of these, Hα, is in the red part of the spectrum, and in fact hot, thin hydrogen emits very strongly in Hα.

By plopping a filter in front of a telescope, you can block a lot of the light from the photosphere but let light from the chromosphere through. That’s what Alan Friedman did — he used a filter that let through a very narrow range of colors centered on Hα — to get this stunning picture. Well that, plus quite a bit of image processing! But everything you’re seeing there is real, and is happening on the Sun.

Bonus:

[via Kottke]

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November 5, 2010. Tags: , , , , , , , , , , , , . Smarts. Leave a comment.

Meet the Intersection of the Future

The Diverging Diamond Interchange:

[via Core77]

[image via GOOD]

November 4, 2010. Tags: , , , , , , , , , , , . Smarts. Leave a comment.

Sorcery or Science: You Decide

Don’t understand what laminar flow has to do with this.

[via Sean Michael Ragan @ Make Magazine]

November 3, 2010. Tags: , , , , , , , , , , , , , . Video. Leave a comment.

Flying Lotus Robot Apocalypse Music Video

[via Passion of the Weiss]

November 2, 2010. Tags: , , , , , , , , , . Video. Leave a comment.

Physical Peer to Physical Peer

It’s called Dead Drops.

Hey guy, what the hell are you doing?

Oh.

‘Dead Drops’ is an anonymous, offline, peer to peer file-sharing network in public space. I am ‘injecting’ USB flash drives into walls, buildings and curbs accessable to anybody in public space. You are invited to go to these places (so far 5 in NYC) to drop or find files on a dead drop. Plug your laptop to a wall, house or pole to share your files and date. Each dead drop contains a readme.txt file explaining the project.

[via Becky Stern @ Make Magazine]

October 30, 2010. Tags: , , , , , , , , , , , , , . Smarts. 1 comment.

Robotginald Comics Continued

Previously….

Context: Rudy is a bad dog.

[via Nedroid]

October 29, 2010. Tags: , , , , , , , , , , , , , . Comics. Leave a comment.

Give It a SECOND

[via Saturday Morning Breakfast Cereal]

Louis CK’s take:

October 28, 2010. Tags: , , , , , , , , , , , , . Comics, Video. Leave a comment.

10 Simple Rules for Editing Wikipedia

New article out from PLoS Computational Biology targeted at interested, yet non-contributing members of the Wikipedia community.

Here are ten rules to live by if you want to be taken seriously when attempting to edit a Wikipedia article:

  1. Register an Account
  2. Learn the Five Pillars
  3. Be Bold, but Not Reckless
  4. Know Your Audience
  5. Do Not Infringe Copyright
  6. Cite, Cite, Cite
  7. Avoid Shameless Self-Promotion
  8. Share Your Expertise, but Don’t Argue From Authority
  9. Write Neutrally and with Due Weight
  10. Ask for Help

Helpful.  Well written.  To the point.

[DW Logan et al. @ PLoS Computational Biology via the Browser]

[image via xkcd]

October 20, 2010. Tags: , , , , , , , , , , , , , , . Reading. 1 comment.

Not So Boring Drill

Speaking of Minecraft, here’s some real mining craft, crafting mines.

Wikipedia fills us in on the Gotthard Base Tunnel:

After 64 percent of Swiss voters accepted the AlpTransit project in a 1992 referendum, construction of the tunnel began in 1996. Boring operations in the east tunnel were completed on 15 October 2010 in a cut-through ceremony broadcast live on Swiss TV. When it opens for traffic in late 2017, the tunnel will cut the 3.5-hour travel time from Zürich to Milan by an hour and from Zürich to Lugano to 1 hour 40 minutes.

The drill is much less epic when it’s spotless and removed from its natural setting.

(Also, this is only a scale model.)

[via Kottke]

[images via the Guardian and Wikimedia Commons]

October 19, 2010. Tags: , , , , , , , , , , , . Smarts. Leave a comment.

Tech Support Comic

Would love to see “shibboleet” make it into the pantheon as a result of this comic.

Dare to dream.

Update: Chris Gaylord @ the Christian Science Monitor has a theory about shibboleet’s etymology.

[via xkcd]

October 19, 2010. Tags: , , , , , , , , , . Comics. Leave a comment.

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