Recent content by Shinyoung Noh
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Medical Effect of Melt-Blown (MB) filter fibers of facial masks on lung tissues
I came up with a curiosity whether having a facial mask on face to breathe can actually be safe to lungs in the following aspect. I remember when I was young, Asbestos was so popularly used in construction. and now, people wear Hazmat suits to remove any remaining Asbestos since it is...- Shinyoung Noh
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- Filter
- Replies: 1
- Forum: Biology and Medical
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Automotive Why is carbon fiber safer than steel for the cars?
Not just for carbon fiber vs steel, I went to a seminar and heard that the team was researching how to make the steel sheets used for car making to be 'stronger', so that, a car can be safer using their material. Then, when I asked what does it actually mean when they say their improved steel...- Shinyoung Noh
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- Carbon Carbon fiber Cars Fiber Steel
- Replies: 13
- Forum: Mechanical Engineering
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Graduate Can Energy-Mass really be conserved ?
I am a bit confused. Nugatory says that it will still be 20 J as energy created will contribute to the gravity and potential energy does not really change, While DaleSpan says potential energy of the stone does reduce and nuclear fission will not be e=mc^2 but will produce equivalent...- Shinyoung Noh
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- Forum: Special and General Relativity
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Graduate Can Energy-Mass really be conserved ?
Conservation of mass from chemistry and conservation of energy from physics were combined into conservation of mass and energy as special relativity proved mass-energy equivalence. In short, if we count all the mass in using E=mc^2, total sum of energy is always conserved even with nuclear...- Shinyoung Noh
- Thread
- Replies: 25
- Forum: Special and General Relativity