Irregular Webcomic!

Archive     Cast     Forum     RSS     Podcast     Poll Results     FAQ     Search     News     Facebook     Fan Art     More Stuff     Random
<   No. 617   2004-10-04   >

Comic #617

1 {The ship's bridge. The characters are watching the stars outside and the computer displays.}
2 {The character's begin fading, losing colour saturation and becoming lighter compared to the space outside.}
3 Paris: {fading even more} What's happening to us?!
3 Spanners: The ship is accelerating close to the speed of light.
4 Paris: {now faded almost to white} Yes... so?
4 Spanners: Our gamma is increasing.

First (1) | Previous (616) | Next (618) || Latest Rerun (889) | Latest New (3347)
First 5 | Previous 5 | Next 5 | Latest 5
Space theme: First | Previous | Next | Latest || First 5 | Previous 5 | Next 5 | Latest 5
This strip's permanent URL: http://www.irregularwebcomic.net/617.html
Annotations off: turn on
Annotations on: turn off

When objects travel near the speed of light, general relativity dictates that they experience time dilation, length contraction, and an increase in relativistic mass. These effects all have a magnitude equal to the Lorentz factor, which is given the Greek letter symbol gamma and is equal to:

γ = 1 / √(1 - v2/c2)

where v is the object's velocity and c is the speed of light. So as your speed increase, your relativistic gamma increases.

In image processing theory, the relationship between the brightness encoding levels and the actual displayed luminance values is frequently non-linear, being a power law with an exponent known as gamma. When a digital image is prepared on one display device, and then displayed on a device with a different gamma, the brightness levels can look wrong - a fact that leads to concern about gamma correction when preparing images for specific display devices. As the gamma of an image is increased, it appears brighter and more washed out.

Yes, to understand this joke you need to know relativity and image processing theory. No, I am unrepentant.


2013-10-18 Rerun commentary: If they are travelling close to the speed of light, the view through the windows would change as well. To get some idea of what they would see, check this article. For a cool video demonstration, see this classic segment from Carl Sagan's Cosmos.

Unfortunately I neglected to include this effect in this comic. I say "unfortunately" because it would have made the strip even nerdier, and once you've gone this far that can only be a good thing.

LEGO® is a registered trademark of the LEGO® Group of companies, which does not sponsor, authorise, or endorse this site.
This material is presented in accordance with the LEGO® Fair Play Guidelines.

Irregular Webcomic! | Darths & Droids | Planet of Hats | mezzacotta | Lightning Made of Owls | Square Root of Minus Garfield | Awkward Fumbles | Comments on a Postcard
Last Modified: Friday, 18 October 2013; 03:11:32 PST.
© 2002-2014 Creative Commons License
This work is copyright and is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported Licence by David Morgan-Mar. dmm@irregularwebcomic.net
Hosted by: DreamHost