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Matt Sisk
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Matt Sisk

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Another great thread in /r/AskHistorians if you're interested in medieval weaponry.
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Matt Sisk's profile photoMike Massa's profile photo
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Matt Sisk

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I rode this gorgeous railway back in 2001 in northern Peloponnese, Greece. Today I was trying to remember the technical term for a steeply-graded railway with a toothed center rail that the engine engages with a gear for more traction. I knew "funicular" wasn't sufficiently descriptive since that has more to do with counter-balancing the cars on a cable. Turns out the less ambitious term was "rack railway" aka "cog railway".
http://en.wikipedia.org/wiki/Rack_railway
http://en.wikipedia.org/wiki/Funicular
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Brian Trammell's profile photoMatt Sisk's profile photoJohn Douglas Porter's profile photo
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of course, cog railways aren't necessarily less ambitious: http://en.wikipedia.org/wiki/Pilatus_railway gets twice as steep as http://en.wikipedia.org/wiki/Polybahn_funicular, for example...
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Matt Sisk

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One of the better analyses of yesterday's claim of having found some biological remnants in the lower stratosphere. This article is appropriately skeptical, much as I'd love for the claims to be verified.
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Phil Plait discusses his role in devising a future night sky featured in the epic xkcd comic "Time".
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I very much feel like while we are on our way to give up privacy and become a giant hive mind we are also on our way to becoming a culture of computation. We are becoming the computer that spits out the answer '42.'
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Matt Sisk

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Hey google, here's a hint: don't label everything that's not public or extended circles "shared privately". In the good old days you could at least see how many were on the to/cc list. (not that I expect my responses to things to actually be private, because you are you, but in the user interface, your "cards", mobile or otherwise, it's a bit misleading.)

edit: no automatic hashtag? #heygoogle
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Um. You can click the "shared privately" and see at least some of the people it's shared with, though not the entire list if it's a large one (which is no different from before).
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Have him in circles
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Matt Sisk

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I'm no expert, but that blood is most probably from a future-pluperfect time traveler that stepped on a butterfly.
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well duh!!
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Matt Sisk

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This is a fascinating video examining tempered glass and the cascading disintegration of some Prince Rupert's Drops.
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Stand back I'm gonna try science
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Interesting interview with John Muratore, SpaceX director of vehicle certification, regarding their use of radiation-tolerant design as opposed to radiation-tolerant parts.
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Have him in circles
139 people
Drew Kompanek's profile photo
Mark Campbell's profile photo
Than Putzig's profile photo
Fred Nelson's profile photo
Misty Skrabal's profile photo
Bob Sisk's profile photo
Jeanne Grier's profile photo
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