Search found 7 matches

by donbock
Mon Aug 15, 2016 8:07 pm UTC
Forum: What If?
Topic: What-If 0151: "Sun Bug"
Replies: 43
Views: 27820

Re: What-If 0151: "Sun Bug"

The blink duty cycle of our solar lightning bugs will confound extrasolar astronomers in their search for exo-planets.
by donbock
Sat Jan 02, 2016 5:11 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1624: 2016
Replies: 82
Views: 15532

Re: 1624: 2016

Twister (the game) turns 50 this year.
by donbock
Mon Oct 05, 2015 9:58 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1586: "Keyboard Problems"
Replies: 61
Views: 11694

Re: 1586: "Keyboard Problems"

I remember a story from a few decades ago about a mysterious terminal bug. All worked fine if you sat down to use the terminal, but the text was garbled if you stood up while using it. Turned out that some of the keycaps were swapped. People sitting down were touch-typing, while people standing were...
by donbock
Wed Apr 30, 2014 7:25 pm UTC
Forum: What If?
Topic: What-if 0094: "Billion-Story Building"
Replies: 106
Views: 28069

Re: What-if #0094: Billion-Story Building

Am I meeting my wife on floor 112,567,998; or was it 112,576,998? Parking garages use a unique color scheme or musical theme to make the levels distinctive. A billion shades of gray! How many songs do you have to go through to in order to select the top billion? We can save a lot of time and money b...
by donbock
Wed Apr 30, 2014 4:38 pm UTC
Forum: What If?
Topic: What-if 0094: "Billion-Story Building"
Replies: 106
Views: 28069

Re: What-if #0094: Billion-Story Building

The elevator compartment would have to be pretty big to fit a control panel that has a billion buttons.
by donbock
Tue Apr 29, 2014 11:28 pm UTC
Forum: What If?
Topic: What-if 0094: "Billion-Story Building"
Replies: 106
Views: 28069

Re: What-if #0094: Billion-Story Building

Isostatic subsidence would convert the few floors (less than 1%) of the Keira-skyscraper into basement levels. Even if it sank all the way to the Earth's core, the overall height of the Keira-skyscraper wouldn't be diminished by much. Seems like the mass of a Keira-skyscraper would be large enough f...
by donbock
Wed Mar 19, 2014 1:35 pm UTC
Forum: What If?
Topic: What-If 0088: "Soda Sequestration"
Replies: 50
Views: 13458

Re: What-If 0088: "Soda Sequestration"

In 2008, Al production was 55.5 Mt from ore and 17.8 Mt from recycled scrap. Production Al from scrap requires 20 times less energy than from ore; assume CO2 emissions are also 20 times lower. In 2006, average CO2 emission due to Al production was 0.2 GtCO2. Assume 2006 and 2008 had same production ...

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