The Action Lab: What Happens if You Focus a 5W Laser With a Giant Magnifying Glass? Negative Kelvin Temperature! at https://www.youtube.com/watch?v=jdjTYlReE-I The intensity in Watts/meter^2 is roughly equal to the Stefan-Boltzmann constant times the 4th power of the temperature in Kelvin. When you focus parallel rays to a smaller area, the intensity goes up, and the
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I am reading at https://www.opnme.com/opnMINER/document-data?ocDocId=5604694&repo=pmc. The background, text color and layout are difficult to read. Is there any way to turn off the background animation, set the font weight and size to readable values? I came across a note on ResearchGate asking for proposals. I was interested in your site and purpose. For the
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Physics@Berkeley: April 10, 2023: Chen-Yu Liu The Neutron Lifetime Puzzle at https://www.youtube.com/watch?v=W1r8SnosSFU Chen-Yu Liu, Links to the author(s) and collaborators. Links to the papers (make sure link to open accessible sources). Links to the raw data and algorithms (software used). No missing pieces, get all the settings, assumptions, steps. There are about 5 billion Internet users
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Physics @ Berkeley: Physics Graduation – May 14, 2023 at https://www.youtube.com/watch?v=Ee_bcfLn0P4 Dear Physics at Berkeley, Whoever posted this, please be aware there are about 5 billion people using the Internet now. This video might be seen by millions of them in the coming decades and more in centuries to come. That number, and what they
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KB9VBR Antennas: Project E.L.F. – The history of communicating with submarines underwater – #HamRadioQA at https://www.youtube.com/watch?v=eC1cqwGkOwY Now, with high dielectric constant and magnetic permeability antennas, these electromagnetic frequencies do not need large structures. Plus gravitational sensor array methods have progressed rapidly in the last couple of decades. So now you can use gravitational location methods, at
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Atacama Makers teaching radio astronomy and science and measurement to students in nearby countries https://almaobservatory.org/en/announcements/atacama-makers-innovating-from-the-schools-of-the-desert/ Valeria Foncea, I visited the Atacama Makers page. It was very dissatisfying. None of the pictures was explained. If you are helping one country’s children, but could post materials online for 5 billion Internet users, that is just sad if
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The Efficient Engineer: The Incredible Strength of Bolted Joints at https://www.youtube.com/watch?v=XLzTB4KLCxU The Efficient Engineer, If parts, components, systems, and supplies are not universally (globally) accessible and widely used, that imposes a high cost. You show Mars. There, heavy bolts and Amazon overnight are likely not going to be available right away. The annual Earth budget is
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@SchraderKing 85 Million teachers, or 200 Million is a small number for a global collaborative worksite. With AIs to remember and assist and interact, not so many humans are needed to share all knowledge and tools with billions of lifetime Internet users. https://www.worldbank.org/en/topic/teachers @ThinkImpact_ At ThinkImpact.com “Well reasearched information from trusted sources.” “Low levels
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Physical Review C @PhysRevC PRC Letter: Perturbative QCD and the neutron star equation of state R. Somasundaram, I. Tews, and J. Margueron https://go.aps.org/3WyGhcL #NeutronStars The impact of pQCD calculations on NS EoS that have been constrained by astrophysical observations https://pic.twitter.com/je2vhzMpUv Replying to @PhysRevC Your chart shows colors not on the legend. When you share please
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Illinois Quantum: Quantum-enhanced interferometric imaging at https://www.youtube.com/watch?v=Thm-RNUAbT8 Brian J Smith, Right now, if you had enough money, or influence or charisma, you could set up imaging nodes all around Earth and in its orbits, around the Moon and Mars and have baselines that are precisely known and large enough for solar system sized baselines, eventually. And
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