Category: Schools, Universities, Learning and Working

Comment on Can You Modify A Car To Save Fuel?

Can You Modify A Car To Save Fuel? – Fifth Gear https://www.youtube.com/watch?v=39g5D7h7jf8 The weight reduction impact shows up if you start and stop as part of a test. Aerodynamic drag goes as the density of air times the velocity squared. You should have waited for a day identical to the first. You guys are in
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Comment on Houston Astronomical Society website and practices

Debbie, First, your novice videos should be globally public on your website.  Either HAS is an organization devoted to all people knowing about the sky and heavens, or not.  Share openly.  If there are things specific to secure gatherings at private places, those should not be shared, but minimized or separate.  I tell groups like
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Comment on Why does light slow down in water

https://www.youtube.com/watch?v=CUjt36SD3h8 You explained part of the problem, but not why it follows those paths. That takes mathematics, and you did not use any. Memorizing animations might seem a way to learn processes and use them later, but equations, measurements and precise models are better. You could have at least shown the equations, and more, provided
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Comment on Electret Mic: How it Works and How to Connect it to a Computer

https://www.youtube.com/watch?v=oqLhvg0I2BU Your microphone link says that particular model is “discontinued”. I use Amazon for convenience and there are several electret microphone items worth seeing at https://www.amazon.com/electret-microphone/s?k=electret+microphone They have the electret microphone elements, but there are also some “electret microphone amplifier” breakout boards that are inexpensive and might work. I ordered some, but have not tried
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Comment on Applied Sciences Video – Measuring Human Digestive Efficiency vs a flame

https://www.youtube.com/watch?v=9wZ0wTqJIxY I am fairly certain you are just seeing the fiber that is concentrated in the feces. It has about the same heating value per unit mass as the original, but indigestible. Most all the sugars, starches and lighter fats are likely to be used for energy – converted to energy, CO2 and water with
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Comment on Nuclear Desalination Report

http://Article Nuclear Desalination: A State-of-the-Art Review Thank you for putting this together. This is a clear, and fairly complete, review of the issues, economics, performance and maintenance of nuclear desalination processors. I just wish that each site’s operational, financial and social impacts were public on the Internet in a form for comparison and optimization. Encouraging
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Comment on Sally Pias – Molecular Modeling, Cholesterol, Oxygen Diffusion, (diabetes)

Dr Sally Pias | Molecular Modeling Changes How We Interpret EPR O2 Measurements | O2M Webinar Series https://www.youtube.com/watch?v=QmcGZy_xZEA Sally, thanks for the link to your paper. I found you on ResearchGate, but it only has the abstract (unless I missed something). I like your visualizations and discussion. I see your paper on proteins and membranes,
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Self reproducing robot societies that live in the desert and convert sunlight to cities

I have had deserts on my mind a lot over the last few decades.  All during the 1980’s I worked on populations forecasts and issues in Africa, then the Famine Early Warning Systems (FEWS.net), then global climate change.  I sort of keep up with any efforts to turn those vast areas into something more suitable
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Comment on Video Demonstrating Convection, and approaches to understanding and visualizing

How to demonstrate convection at https://www.youtube.com/watch?v=-8PoCwx2de0 The simple materials are good, but you, yourself, did not explain what you were expecting, where the students and demonstrators were supposed to focus their attention. You said (don’t use purple shirt) and for this short video, why did you not go change your shirt and record it again? Or,
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Comment on old style MIT lab presentations. They are SO slow

Optics: Fringe contrast – path difference | MIT Video Demonstrations in Lasers and Optics https://www.youtube.com/watch?v=IZGnYe7BUms This is like those old serials – always ends with a cliff hanger. How irritating. Some good stuff, glad to see it. But wish he would not be so Socratic, and more measurement and data oriented. But this is a
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