IP List distribution The Physics of Star Trek by Lawrence M. Krauss PDF, total 4
| IP | Country | City | ISP |
|---|---|---|---|
| 191.101.157.135 | United States | Chicago | Host1Plus |
| 213.196.99.147 | Bosnia and Herzegovina | SD Sistemi LTD. | |
| 221.229.53.231 | China | Nanjing | China Telecom |
| 77.137.73.99 | France | HOTnet |