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Comment: is the delta v that bad? (Score 1) 80

by dotmax (#42141183) Attached to: MESSENGER Probe Finds Strong Evidence of Ice On Mercury
I did a cursory goog, and got the impression that the delta-V to Mercury is 1/6th of the delta-V to Mars. Mercury is down the hill from us, not uphill. Mercury would seem to have the added benefit of having 10x the initial solar radiation available for running a sail. I'm a little disappointed to see this topic get so few posts. Mercury has a lot to offer from an explorational perspective. Plentiful energy, a B-field, easy to get to.... much more interesting than Mars in many ways.

Comment: Not So Fast, Einstein. (Score 2) 262

by dotmax (#39362223) Attached to: Instant Messaging With Neutrinos
Sending neutrino messages is old hat. Receiving them is a bit more difficult, because neutrinos are so damned difficult to detect. They basically don't interact with anything, which is why Fermilab can shoot a neutrino beam an a 735 km underground trip to Minnesota. So to receive your IM, you need a detector the mass of the USS Iowa. I sent out "Dinner is served" back in the 80s, by the way.

Comment: K. Eric Drexler and L5 figured this out long ago (Score 1) 481

by dotmax (#37267112) Attached to: Chinese Want To Capture an Asteroid
I remember, as an ardent newcomer to L5, talking about exactly this sort of thing with Eric Drexler in a park somewhere in the Bay Area, back in 1983. What the heck, good luck to the Chinese. Maybe they'll even do it. (although the delta-V required is truly staggering, even for the kind of intercept described)

Comment: Re:a new excuse for feckless behavior. (Score 1) 246

by dotmax (#36070002) Attached to: Easily Distracted People May Have 'Too Much Brain'
Funny you should mention digging ditches. I dug a nice one across my property a couple of years ago when my employer furloughed its staff for a few days. I won't bother dicksizing what i do for money, but you can figure it out from my previous posts. You're not the only intellectually gifted snowflake in the room, son. Man-up and take responsibility for your bullshit.

To thine own self be true. (If not that, at least make some money.)

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