Here's what's keeping me from upgrading my XP machines to Windows 7: Upgrading from Windows XP to Windows 7

That's the top (unsponsored) Google link for the query "how to upgrade windows xp to windows 7."

Note the bullet items under "what you need:"

• An external hard disk
• The original installation discs or setup files for the programs that you want to use

Sorry, they want me to pay for the privilege and blow a whole weekend to update my four XP machines at home? What do I get out of this? My XP machines do what they need to do just fine.

Mojo

I'm sure they put on some great shows, but these modern "overhead projectors" often lack the dynamic range of the best discrete planetarium projectors out there.

Even among dedicated planetarium projectors, only the best are able to replicate the differences in brightness between mag 1 and mag 6 stars with any convincing accuracy. Many of them project such a "flat" sky in terms of brightness that it's difficult to recognize even familiar constellations. The old Morrison Planetarium projector had dedicated lamps for particular bright guide stars, and the projector at Chabot Science Center is very good at that.

It's discouraging to see a run-of-the-mill college planetarium with "bright" stars that are just smears of bigger dots.

So they aren't pixelating, but I bet their Spica is nearly the same brightness as their Porrima.

When we photograph meteors for genuine data collection, we don't use a mount at all. We set up a ring of cameras with each covering several degrees of sky, and let them all take five or ten minute exposures. It's your best hope of catching a bright one and several faint ones. If you're using a decently short lens (50mm, 35mm), (a) you'll catch more meteors and (b) the star trails are less notable, or you won't care about them.

Remember, with meteors being an atmospheric phenomenon, you'll catch more closer to the horizon than looking up. (You're looking through more air.)

And it makes no difference if you're looking toward or away from the radiant for meteor count.

One thing that worked well for me is taking classes at UCLA Extension, even working for a certificate. Admittedly the classes are usually pretty lame, and you'll find yourself cruising through them for the most part. It's not the classes themselves that you get most of the skill from, it's just doing organized work in the language, and all periphery skill you acquire along the way. I do much better with scheduled in-person classes that have real homework than with online stuff.

Not looking at the keyboard is essential. You need to be able to read and correct your typing as you go. Aside from that, I agree with the others that getting another 10wpm matters not.

If you only ever used one keyboard, switching to Dvorak would make sense. These days that's just impossible, even if you're not a computer tech professional.

I have a 70 ft. conduit run from my equipment to the projector in the back of my room. HDMI max run length is, what? 15 ft.?

What I've done is make a small TrueCrypt drive, and redirect Firefox to use that for its local data. It will store the cache and my passwords on that drive, thus keeping my passwords hidden without first entering the TrueCrypt password.

Find Firefox's profiles.ini file in your local application data directory.

Downside: you have to give TrueCrypt a password whenever you startup, and Firefox won't boot at all if the TrueCrypt drive isn't mounted. The error message is misleading too, "Firefox is already running ..." (fail!)

Bonus: the pr0n downloads in your cache are encrypted too.

Tried to buy it for my Kindle and couldn't. :(

Yes there is value to visiting old equipment left behind. Remember Apollo 12 visited one of the Surveyor landing craft to return a sample from it, for long-term exposure analysis. Even checking out the erosion of the footprints by micrometeorites would be kind of interesting.

People born in cities these days don't realize that the Milky Way is something real that they can see with their own eyes. The words "Milky Way" themselves are losing their meaning. For a lot of people, the words "Milky Way" just mean something vaguely spacey.

When faced with the Milky Way for the first time from a dark location, they'll easily think "oh there's a line of clouds moving in." In the city, the clouds glow. From a truly dark location, the only way you can tell there are clouds is by the big patch of dark where there should be stars.

And likewise, many people will never have the experience of having their vision fully dark adapted. It's amazing how milky gray the sky looks when you actually are dark adapted.