Tuesday, February 16, 2016
More New Astronomy Coming: Webb Space Telescope
Slated to launch in 2018, Webb is the Hubble's replacement. It is primarily an infrared telescope, which allows viewing of extremely red-shifted objects. In other words, stuff really really far away. Here's the Wikipedia article on this device. Back to the Hubble comparisons, here are the relative sizes of the mirrors:
Between the Webb and LIGO, the 2020's are going to be boom times in astronomy.
Monday, February 15, 2016
Gravitational Wave & LIGO Follow-Up
Here's an informative article over at the Christian Science Monitor: Why This Gravitational Wave Finding is Such a Huge Deal. Read the whole thing, but here are the punch lines:
- Einstein was right, gravitational waves really do exist. We sort of knew this already, through indirect observation of the orbital decay of binary neutron stars. But it is awfully nice to observe these directly. Now the subject is 100% nailed down.
- For the first time, black holes have been directly observed. You can't see them with light, but now we can directly "see" them by the gravitational waves they radiate.
- Now for the important part, so pay attention: Think of all the new and interesting science we can do through this way of seeing out into the universe. That's the real story here. This is the equivalent of the first telescope being pointed out at the planets and stars. Something unexpected is sure to pop up, and in unexpectedness there is discovery, new knowledge, and maybe even a path to some wisdom.
Bonus link: the Wikipedia entry on LIGO. You ought to go skim that article too.
Image shamelessly stolen from the linked article.
That is all for today.
Sunday, February 14, 2016
Thursday, February 11, 2016
Gravitational Waves, So What?
Wednesday, February 10, 2016
Two Quick Ham Resource Notes
Another interesting blog, Adventures in Amateur Radio.
Something I've been meaning to look into: how to properly adjust RF gain. The blog seems mostly abandoned, but it has a few useful tidbits here and there.
That is all. Back to your regularly scheduled web surfing.
Tuesday, February 9, 2016
Star Wars / Calvin & Hobbes Mash-Up
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