Saturday, February 16, 2008

Satellite shoot down

So the military wants to shoot down a spy satellite to save the public from hydrazine.

Let's begin with some facts: hydrazine, while unhealthy at best, is hazardous primarily in long-duration, low level exposures. Its ammonia smell makes it an unlikely candidate for an accidental overdose by drinking or extended inhalation. Its low vapor pressure reduces the inhalation hazard as well. Its relatively high reactivity means that it will not persist in the environment for long.

All in all, not exactly as dangerous as, say, a truckload of gasoline. Or, for that matter, a truckload of hydrazine...it is an industrial chemical after all.

So why the willingness to spend real money to take a potshot at a dead spy satellite?

The cynics among us might suspect a desire to send someone a message...

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