A researcher holds the scaffolding with tiny copper foils attached. These copper pieces will be struck with lasers, heating them to thousands of degrees Fahrenheit. Credit: Hiroshi Sawada Topics: Applied Physics, Lasers, Materials Science, Plasma, Radiation, Thermodynamics For the first time, researchers monitor the heat progression in laser-created plasma that occurs in only a fewContinue reading “Lasers and Plasma…”
Category Archives: Radiation
Boltwood Estimate…
Credit: Public Domain Topics: Applied Physics, Education, History, Materials Science, Philosophy, Radiation, Research We take for granted that Earth is very old, almost incomprehensibly so. But for much of human history, estimates of Earth’s age were scattershot at best. In February 1907, a chemist named Bertram Boltwood published a paper in the American Journal of Science detailing a novelContinue reading “Boltwood Estimate…”
Remnant…
Topics: Astrophysics, Interstellar, Plasma, Supernovae, Radiation Scientists have found new evidence that Earth has been moving through the remains of exploded stars for at least the last 33,000 years. In a new study published in the journal Proceedings of the National Academy of Sciences, a team of Australian researchers describe how they extracted a special isotope of iron called iron-60Continue reading “Remnant…”
Physics and Nano 