| | | | | The week in physics: 1–5 December | | | | ADVERTISEMENT Pumps with LeakTight Safety Backup | | Handling hazardous or expensive gases and vapors requires extra care. KNF LeakTight pumps offer ultralow leak rates of <6×10-6 mbar L/sec and a safety backup diaphragm, plus safeguards against intrusion contamination. Flow rates from 15–300 L/min. Options include explosion-proof motors and flow path material choices for chemical compatibility. Learn more. | | | | | From the vault: December 1975 The Earth's magnetosphere | | Far from being an empty cavity, as was once believed, the Earth's magnetic environment is filled with a diversity of plasma, wave and field conditions. | | Syun‐Ichi Akasofu and Louis J. Lanzerotti | | | | | | | | © 2025 American Institute of Physics. | Physics Today 1 Physics Ellipse College Park, MD 20740-3842 +1 301 209 3100 | | |
No comments:
Post a Comment