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Activity for manassehkatz‭

Type On... Excerpt Status Date
Edit Post #285321 Initial revision over 2 years ago
Answer A: Are lamps, with blistering light bulbs exposed and facing down on the user, dangersome?
This looks like a typical halogen light bulb. They are: Extremely hot Very bright Very small The combination means that, until bright, efficient and affordable white LEDs came along (LEDs have been around a long time, but only recently have white LEDs become bright enough and inexpensive e...
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over 2 years ago
Edit Post #283986 Initial revision over 2 years ago
Answer A: Is it plausible to desire a "universal" calendar applicable everywhere in our universe?
No. A calendar or, more generally, a time measurement system, can be based on anything. While human calendars have (generally) been based on: Day = One cycle of the Earth's rotation Month = One cycle of the moon's revolution around the Earth Year = One cycle of the Earth's revolution aroun...
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over 2 years ago
Edit Post #281326 Initial revision almost 3 years ago
Answer A: Is it rational to freeze water bottles during colder nights, and place them in front of a fan during warmer days?
TL;DR Yes, that will work. It may not be practical, but that is a separate issue. There are two measurements routinely used for cooling in the US: BTU = British Thermal Unit = heat to raise the temperature of one pound of water by one degree Farhenheit Ton = 12,000 BTU per hour Why 12,000...
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almost 3 years ago
Comment Post #280853 It is only Physics as one step in [XKCD](https://xkcd.com/435/)
(more)
about 3 years ago