Sorted by New


Open thread, May 29 - June 4, 2017

psbook is what I'd use - you might need pdftops to get postscript out of the pdf, or perhaps print to a generic postscript printer directly.

Open thread, Feb. 06 - Feb. 12, 2017

Or two ordinary small balls, one dropped from just above the geosynchronous orbit, the second one from far above the orbit. While the first one slowly drifts away to the space, the second shoots away, makes a complete (retrograde) orbit around Sun and splashes into the Atlantic while the first ball is still drifting...

Requires some careful timing, though.

Open thread, Feb. 06 - Feb. 12, 2017

If their gravity is significant enough, then it is incorrect to describe that they splash into the Atlantic - it's the Atlantic that splashes into them.

I'd prefer solutions that do not destroy the Earth :-)

Open thread, Feb. 06 - Feb. 12, 2017

If both rotate (I assume the same angular velocity) , what can be said about the direction of their axes of rotation?

Another idea: Gurl ner zntargvp, pybfr rabhtu gung gurl nggenpg gurzfryirf, fgvpx gbtrgure naq gur ubevmbagny nflzrgel pnhfrf gur bowrpgf gb ghzoyr naq gur uvture bar pbzrf qbja svefg.

Open thread, Feb. 06 - Feb. 12, 2017

Well, if you said "the sea is rough equally for both of them" it would be obvious:-)

Another idea: A ebgngrf. Gur Zntahf rssrpg cebivqrf yvsg naq fybjf qbja gur snyy.

Open thread, Feb. 06 - Feb. 12, 2017

My first thought was that B reaches terminal velocity and that's it, but the object A is dropped from substantially higher altitude, picks up speed much higher than the terminal velocity and the atmosphere won't slow it down enough,

I do not feel like oing the math, but there is a simpler solution: jnvg sbe n jnir naq gvzr gur qebc va fhpu n jnl gung bowrpg N, orvat uvture ol yrff guna gur jnir urvtug, uvgf gur perfg bs gur jnir.

Open Thread, Aug. 1 - Aug 7. 2016

There is also the little issue of Venus receiving about twice the insolation than Earth....

Crazy Ideas Thread

As a rather illustrative case study look at the history of XMPP at Facebook and Google (Talk). Facebook messaging used XMPP until 2015, but it was not federated - but at least you could use client of your own choice. Then they switched to a proprietary API. Google talk used federated XMPP for years, but then dropped server-to-server encryption, effectively cutting off majority of servers, and then dropped Talk in favour of proprietary Hangouts altogether. So the trend is just the opposite - if the player grows big enough and the community becomes self sustained, they will start walling the garden.

Open Thread - Aug 24 - Aug 30

Maybe he meant life expectancy. Anyway, that too is locale specific and depends on your life style and (increasingly with age) on healthcare availability - which could be hampered a lot by moving abroad. Not taking into account increased stress due to unfamiliar environment and (likely) less satisfying job.

Load More