Search found 4 matches

by Myta
Sat Aug 16, 2014 11:30 am UTC
Forum: What If?
Topic: What-If 0108: "Expensive Shoebox"
Replies: 151
Views: 102538

Re: What-If 0108: "Expensive Shoebox"

Costs vary widely. Good material can cost at least $8.70 per mg of NaCl. I figure that you can fit approximately 27,000 g of NaCl in a 12.5 L shoebox (based on a density of NaCl of 2.16 g/cm3). At $8.70 per mg, this would cost nearly $235 billion! This isn't even the most expensive enriched isotope...
by Myta
Wed Aug 13, 2014 10:35 pm UTC
Forum: What If?
Topic: What-If 0108: "Expensive Shoebox"
Replies: 151
Views: 102538

Re: What-If 0108: "Expensive Shoebox"

If you want to actually fill it with something, then Cerium136 is a good candidate. Rough cost estimate is 80$ per mg for an enrichment of 20%. Cerium has a density of about 6.77g/cm^3, so our 15 liter shoebox would be slightly above 8 billion. I would assume that an increased enrichment leads to a ...
by Myta
Fri Sep 23, 2011 12:55 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0955: "Neutrinos"
Replies: 159
Views: 43978

Re: 0955: "Neutrinos"

For Einstein (and subsequent experimental proof) to set the entire universe in stone with his predictions, at a time when we still didn't know so much about the universe (and still don't know so much) seems a little ... naive, surely? I'm not denying that Einstein and his predictions aren't true, b...
by Myta
Fri Jan 02, 2009 12:09 pm UTC
Forum: Logic Puzzles
Topic: Outsmarting the Genie
Replies: 257
Views: 25435

Re: Outsmarting the Genie

1. granted, now i restrict myself to corrupting your wishes in a way that is horrible but cant be detected if you observe the events of your life visually from outside your body (thats how i interpret witness) 2. every sound you hear produces horrible images in your mind. for the sake of 1. you are ...

Go to advanced search