Willful Ignorance…

Topics: Civics, Civil Rights, Climate Change, Existentialism, History, Human Rights There is a high price for willful ignorance. The above is Dr. Carl Sagan, an Astrophysicist, five years fresh off of the success of the original Cosmos series. He’s speaking about mitigating the effects of greenhouse gases, what is now referred to as global warmingContinue reading “Willful Ignorance…”

Kilonovas and Gold…

Topics: Astronomy, Astrophysics, Chemistry, Materials Science, Neutron Stars The amounts of heavy elements such as gold created when black holes merge with neutron stars have been calculated and compared with the amounts expected when pairs of neutron stars merge. The calculations were done by Hsin-Yu Chen and Salvatore Vitale at the Massachusetts Institute of Technology and Francois Foucart at the UniversityContinue reading “Kilonovas and Gold…”

Time…

Topics: Applied Physics, Education, Research, Thermodynamics Also note the Hyper Physics link on the Second Law of Thermodynamics, particularly “Time’s Arrow.” “The two most powerful warriors are patience and time,” Leo Tolstoy, War, and Peace The short answerWe can measure time intervals — the duration between two events — most accurately with atomic clocks. TheseContinue reading “Time…”

Your Brain on Covid…

Topics: Biology, COVID-19, DNA, Research Note: I have friends who thankfully survived infection now affected by this phenomenon. The article thus grabbed my attention. SARS-CoV-2 appears to travel widely across the cerebral cortex “Brain fog” is not a formal medical descriptor. But it aptly describes an inability to think clearly that can turn up inContinue reading “Your Brain on Covid…”

HETs…

Topics: Applied Physics, Computer Modeling, NASA, Space Exploration, Spaceflight Abstract Hall effect thrusters operating at power levels in excess of several hundreds of kilowatts have been identified as enabling technologies for applications such as lunar tugs, large satellite orbital transfer vehicles, and solar system exploration. These large thrusters introduce significant testing challenges due to theContinue reading “HETs…”

Kristallnacht…

Topics: Civics, Civil Rights, Democracy, Existentialism, Fascism, Human Rights Amid the GOP’s nationwide push against teaching about race and sexuality in schools, two members of the Spotsylvania County School Board in Virginia advocated for burning certain books, according to the Fredericksburg-based Free Lance-Star newspaper. This came as the school board directed staff to begin removing “sexually explicit” booksContinue reading “Kristallnacht…”

Quantum Exorcism…

Topics: Chemistry, History, Materials Science, Quantum Mechanics, Thermodynamics Thermodynamics is a strange theory. Although it is fundamental to our understanding of the world, it differs dramatically from other physical theories. For that reason, it has been termed the “village witch” of physics.1 Some of the many oddities of thermodynamics are the bizarre philosophical implications of classicalContinue reading “Quantum Exorcism…”

Wearable Pressure Sensors…

Topics: Applied Physics, Biotechnology, Nanotechnology Wearable pressure sensors are commonly used in medicine to track vital signs, and in robotics to help mechanical fingers handle delicate objects. Conventional soft capacitive pressure sensors only work at pressures below 3 kPa, however, meaning that something as simple as tight-fitting clothing can hinder their performance. A team ofContinue reading “Wearable Pressure Sensors…”

The Incredible Callousness of Being…

Topics: Civics, Civil Rights, Existentialism, Fascism, Human Rights Title source: The Unbearable Lightness of Being, a 1984 novel by Milan Kundera. The White House correspondent slot is a coveted perch in Washington, DC, media real estate. After landing an excellent job and a press pass, a select few of journalism’s crème de la crème getContinue reading “The Incredible Callousness of Being…”

Pairs of Cooper Pairs…

Topics: Condensed Matter Physics, Solid-State Physics, Superconductors Note: I gave my research proposal last Friday. I have been answering some concerns about my proposal for the committee. I followed the outline sent to me by my advisor. I hope I’ve answered them sufficiently. I will post today and tomorrow; next week on Monday, Wednesday, andContinue reading “Pairs of Cooper Pairs…”