« first day (3921 days earlier)      last day (316 days later) » 

TheMatrix Equation-balance
TheMatrix Equation-balance
00:32
Dmitri Shostakovich - The Second Waltz youtube.com/watch?v=IOK8Jb76ibc
 
3 hours later…
uhoh
uhoh
03:11
0
Q: What are the technologies needed to make deep space LIDAR competitive with RADAR? Any plans for tests, prototypes or "pathfinder" systems?

uhohProfRob's answer to Would it be practical to map out the Kuiper Belt and Oort Cloud via Radar? gives us a "sobriety check" on the idea. Citing an example of a 1 million watt transmitter at the late Arecibo dish with a beam of 2 arcminutes, a 140 m asteroid might be detected with an S/N ratio of f...

observational-astronomy solar-system radar lidar
@ErinAnne why didn't u tell me there are Julie Andres references in the video! OMG everytrhing stop while I watch this :-)
I dream of starting the Optics and Photonics Stack Exchange site, how to make such a prism would be an excellent question.
 
2 hours later…
XKCD
XKCD
05:22
If you're really savvy, you can hide an entire set of illicit transactions by timing them to draw what looks like a graph inset.
Erin Anne
Erin Anne
05:53
@uhoh it sounds like the astronomers know and the filmmakers don't

« first day (3921 days earlier)      last day (316 days later) »