friday fun: the space edition

I have a thing about space, something I share with my oldest. It’s not quite a passion, but it’s more than an interest. Part of it is just awe over how mind-blowingly vast and weird space is, and part of it is wonder at how tiny, fragile, and short-lived creatures like us are determined to uncover its secrets. Even if it means spending years building robots to be our vanguards, launching them at the precise right time, and hoping that they can nail that landing when they’re supposed to.

Why, yes, I am talking about Curiosity’s landing on Mars this August. If all goes well, the rover’s touchdown should look like this:

Last week, we discovered a great iPhone/iPad app called Star Walk. Basically, you can take your phone or tablet outside on a starry night (or hey, even in the day!), hold it up in any direction and it’ll tell you what stars and planets you’re looking at–or would be looking at if the sun, the earth, random trees or your neighbor’s pink-turreted house were not in the way. Very fun.

In the mood to help discover new exoplanets for future robotic missions to explore? Look no further than Planet Hunters. I’m planning on setting Sir I. loose on it once life permits.

Do you go stargazing? What do you find fascinating about space?

spider silk: the logistics of luxury

The world’s largest spider silk garment is on display for the first time at the Victoria & Albert museum. Spider silk is one of those ultra-exotic luxuries that crops up from time to time in fantasies, often imbued with magical powers. A spider silk cape, one can imagine, might come with Spidey powers: keen senses, near-invisibility, the ability to leap from building to building. It’s so easy to throw spider silk into the economy of one’s fantasy world, along with heart-sized rubies and mollusk-made purple dye.

However, this article shows that some things are too rare and too labor-intensive to be more than one-time novelties:

To create the cape, British art historian Simon Peers and his American business partner Nicholas Godley spent five years collecting and harnessing over 1 million spiders in special “silking” contraptions to extract their threads, 24 critters at a time.

On average, 23,000 spiders yield roughly 1 ounce of silk, making the process intensely laborious and time-consuming. It’s not hyperbole then to claim that the textiles are among the world’s most rare and precious objects—liquid gold, if you will.

Unless, of course, you have a high-tech world where they’ve figured out how to manufacture artificial spider silk.

Or they have really really big arachnids.

*pause*

“Spider hunter” on that world might be an um… interesting job!

I would love to touch spider silk cloth, though. Just to see how it feels.

What about you? What rare or one-of-kind item would you like to see in person or hold in your hand for a few minutes?

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Via Skymania

VISTA's image of the Helix Nebula. Credit: ESO/VISTA/J. Emerson

homeschool highlights

I lost most of the day yesterday to Life Happens, so we’ll pretend today’s Friday and I haven’t broken my New Year’s resolution already. (Hey, and if the world indulges me in that fantasy, can I pretend Monday’s also part of the weekend? Please?).

We’re studying the Middle Ages this year (Vikings and castles and knights, oh my!). Perfect for lots of fun projects, such as making a Viking longship. I found this awesome make-a-Viking-ship-out-of-a-milk-carton project (we used an eggnog carton) and set D. to work on it with Sir I. I’m more artsy and D.’s more craftsy, so anything that requires ruler-straight lines falls into his domain.

I also found this cool animated Bayeux tapestry (only part of the story, but still fun) on YouTube.

For science, we’re charting the phases of the moon for a whole month (it’s a gibbous moon tonight, with a full moon tomorrow).  I found a moon phase calendar and a moonrise/moonset chart online; I’ve never paid much attention to the lunar cycle before this, but I think this unit will be good from a worldbuilding perspective.  We’re also watching episodes of the History Channel show The Universe, which is really good, except they love to blow up the Earth in all its computer-animated glory in various creatively catastrophic ways. Sir I.’s really into all things space (as am I) so we’re having a lot of fun reading and watching and talking astronomy.

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CREDIT: Larry Van Vleet, via PopSci and SPACE

linkfest: human ingenuity

Sun, sand, and… a 3D printer? It’s like a glimpse into a Star Trek future.

Why yes, it is possible to lift up a house with balloons. A teeny house. With weather balloons.

Some people make model airplanes. And others build rockets: 121, 000 feet in 92 seconds.

The days of the eyeglass-and-mustache Mr. Potatohead disguise are numbered: Japanese company comes up with realistic 3D face replicas.

Does it come in German Shepherd? BigDog