Topics: Astrophysics, Cosmology, Einstein, General Relativity, Star Trek Note: One of the things you find out about sophomore, or junior year in physics is faster-than-light travel violates causality: the arrow of time points forward, not in “loop-de-loop.” Thus, we can suspend belief as every version of Trek did time travel episodes, because superluminal speeds wouldContinue reading “Five Stages…”
Author Archives: reginaldgoodwin
Gold Anniversary…
Topics: Electrical Engineering, Materials Science, Nanotechnology, Solid-State Physics It’s not exactly a wedding anniversary, but it is significant. Fifty years ago this month, Intel introduced the first commercial microprocessor, the 4004. Microprocessors are tiny, general-purpose chips that use integrated circuits made up of transistors to process data; they are the core of a modern computer.Continue reading “Gold Anniversary…”
Scrofulous Signaling…
Topics: Applied Physics, Electrical Engineering, Materials Science, Optics ABSTRACT We present results of near-field radio-frequency (RF) imaging at micrometer resolution using an ensemble of nitrogen-vacancy (NV) centers in diamond. The spatial resolution of RF imaging is set by the resolution of an optical microscope, which is markedly higher than the existing RF imaging methods. HighContinue reading “Scrofulous Signaling…”
Smallest Qubit Computer…
Topics: Computer Science, Quantum Computer, Quantum Mechanics The smallest quantum computer to date has been claimed by a team of researchers in Austria, Switzerland, and Germany. Using strings of trapped ions that are addressed using laser pulses, Ivan Pogorelov at the University of Innsbruck and colleagues created a system that contains 24 fully-entangled quantum bits (qubits) andContinue reading “Smallest Qubit Computer…”
Thirty-Three Point Eight…
Topics: Climate Change, Existentialism, Global Warming, Politics Fahrenheit to Celsius Celsius to Fahrenheit (5/9)(°F – 32) = °C (9/5) °C + 32 = °F Handy-Dandy Conversion Table Even though the Big Think video is informative, my critique is it presumes much regarding the audience, presumably the species. The assumption is that even with the equivalentContinue reading “Thirty-Three Point Eight…”
Power Density…
Topics: Alternate Energy, Climate Change, Existentialism, Global Warming, Green Tech, Thermodynamics Optimizing the placement of turbines within a wind farm can significantly increase energy extraction – but only until the installation reaches a certain size, researchers in the US conclude. This is just one finding of a computational study on wind turbines’ effects on theContinue reading “Power Density…”
Smart Foam…
Topics: Biology, Biotechnology, Materials Science, Polymer Science, Robotics SINGAPORE, July 6 (Reuters) – Singapore researchers have developed a smart foam material that allows robots to sense nearby objects, and repairs itself when damaged, just like human skin. Artificially innervated foam, or AiFoam, is a highly elastic polymer created by mixing fluoropolymer with a compound thatContinue reading “Smart Foam…”
Kagome Metal…
Topics: Condensed Matter Physics, Materials Science, Superconductors Researchers at the Chinese Academy of Sciences have found evidence for an unusual superconducting state in CsV3Sb5, a so-called Kagome metal that exhibits exotic electronic properties. The finding could shed new light on how superconductivity emerges in materials where phenomena such as frustrated magnetism and intertwined orders playContinue reading “Kagome Metal…”
Last Ice…
Topics: Climate Change, Existentialism, Global Warming The “Last Ice Area,” an Arctic region known for its thick ice cover, may be more vulnerable to climate change than scientists suspected, a new study has found. This frozen zone, which lies to the north of Greenland, earned its dramatic name because even though its ice grows and shrinks seasonally, much of theContinue reading “Last Ice…”
Coups, Crackpots, and Psychopaths…
Topics: Civics, Civil Rights, Existentialism, Fascism, Human Rights Coups There is a strong Trump following in the military, and retired generals on the crazy train, making moot all the protestations about Bill Clinton being a “draft dodger.” Mango Mussolini has five deferments from fake bone spurs. Most of the retired generals are part of theContinue reading “Coups, Crackpots, and Psychopaths…”
Physics and Nano 