All posts by Rand Simberg

Colorado

Don’t Californicate us, bro!

We’ve been thinking about relocating there (we already have a house in Golden), but things like this really make us hesitate. I hope there’s a big backlash. I’m tempted to throw those who want Colorado to remain free some money to help compensate for all of the funds coming from here.

[Update a while later]

Why Kanye West is leaving California.

For us, the question isn’t whether, but where (and when) to go.

Android Phones

Hundreds of millions of them are vulnerable to having their cameras and mikes hacked.

I’ll have to check the Motorola site to see if they have a patch for my G6. This kind of thing is why I avoid the use of my cell unless I’m traveling.

[Update a couple minutes later]

OK, it seems that one way to prevent this is to not grant an app permission to access device storage. I rarely do that, so I’m probably OK.

[Update a few minutes later]

Sorry, link fixed.

Sand

Are we really running out of it?

The problem lies in the type of sand we are using. Desert sand is largely useless to us. The overwhelming bulk of the sand we harvest goes to make concrete, and for that purpose, desert sand grains are the wrong shape. Eroded by wind rather than water, they are too smooth and rounded to lock together to form stable concrete.

We cannot extract 50 billion tonnes per year of any material without leading to massive impacts on the planet and thus on people’s lives – Pascal Peduzzi The sand we need is the more angular stuff found in the beds, banks, and floodplains of rivers, as well as in lakes and on the seashore. The demand for that material is so intense that around the world, riverbeds and beaches are being stripped bare, and farmlands and forests torn up to get at the precious grains. And in a growing number of countries, criminal gangs have moved in to the trade, spawning an often lethal black market in sand.

Ironically, as we discussed at the Space Settlement Summit last week, lunar regolith dust has ideal properties in that regard, which is why it’s such nasty stuff to deal with. Probably not worth the cost of importing it to earth, though.

[Update a while later]

For some reason, this reminds me of the old joke about what would happen if socialists took over the Sahara Desert.