Sun 24 May 2009
LA is BIG
Posted by admin under adventures, fun facts
[2] Comments
The famous opening lines of The Hitchhiker’s Guide to the Galaxy (in the book by Douglas Adams) informs readers that space is big. Really big. You can’t imagine how mind-boggingly big it is. Now, because so our blog is, apply that idea to Los Angeles.
On Saturday of this lovely Memorial Day weekend, I joined up with a friend who is leaving Los Angeles soon. Having long been a native, she’s now trying to do everything she always planned to get to. I think that’s just the way it is in your native locale. You figure you’ll get to all those famous things eventually.
Our plan? We spent the afternoon wandering around the Griffith Observatory and then we hiked up as close as we could to the Hollywood sign.
The Griffith Observatory was very cool. I’d like to go back in the evening when the telescope is open and available for the public to look through. It’s actually quite a compact museum for such an expansive topic. The upper floor recapped lots of grade school information that I had forgotten: eclipses, tides, sunrise and set. It had a lot of really cool pictures of the sun. I love the idea of the sun as being made up of long tubes with “cool” sunspots. It makes the star seem….pet-able.
In another wing, the Observatory mostly had exhibits on telescopes. There was also a demonstration by a tesla coil, which was no so impressive because it’s only purpose seems to be impressive. In the entrance, there is a Focault’s pendulum, which I did not know was first used to prove the earth rotates. Aside from the big swinging pendulum, the most important part is a row of tubes that the pendulum is supposed to knock down. Depending on your position on earth and nearness to the poles and equator, the pendulum will eventually swing in the direction of the rotation and knock down a tube. In Los Angeles, the Griffith Observatory’s pendulum achieves its goal once every 42 hours.
Underneath the Observatory are exhibits on meteors, the planets and the whole “space is big” idea. The information is pretty up to date because Pluto is no longer a planet but a member of the Kuipur (sp?) belt. The only other object identified in the belt was Sedna, which takes about 10,000 years to make it around the sun.
Oh! A cool video was how the sun looks from various planets. From Earth, it looks pretty big. From Mars, pretty much the same too. When you get to Jupiter, I was actually surprised at how small it was. And from Pluto, it just looked like another star in the sky.
At the planet exhibit, you could weight yourself to see how gravity was different for each planet. I think some of them were broken because I weighed the same on Earth, Mars, Jupiter and Pluto.
Another cool interative video was one about other planets in the Milky Way. The computer showed you where the planets were located compared to Earth, how big their orbits were around the sun compared to Earth and how big they were in comparison to Earth. I liked that. I also liked videos they had of space vehicles landing on different planets and moons. I didn’t know we got an unmanned spacecraft to one of Saturn’s moons. (I want to say Triton?) And apparently there’s one on the way to Pluto. It will really suck if it misses the planet all together.
Oh! Because pluto takes awhile to get around the sun, the Observatory had a little video that showed where it was located during certain points in Earth history. In one rotation, Pluto would have witnessed a lot.
And I loved how it turned out all of Neptune’s moons are named after characters in Shakespeare’s The Tempest. And it was Neptune or Uranus that has “spring” storms that last for years. Down in the sun exhibit, they had really neat videos that showed different features of the sun because of different instruments, and how sun flares can really disrupt things even from far away.
Afterwards, we hiked up to the Hollywood sign. It was a two and a half mile climb upward. We navigated horses and manure and other hikers. We lost a friend. We were reunited with them. We made it back down before dark. But after seeing the vastness of space and then experiencing the vastness of possibility in the confined Griffith Park, we figured the day had been successful indeed.