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Everything posted by Externet
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Hello. A weather radar operates at location R and emits to/receives and displays bounced signals from snowing points S. Beyond the snowing there is rain or sleet at E or more snow in the same direction. R----------------------S---SS---------SSS--------EEEE---E-EE--------SSS------ > If the radar signal bounces from the precipitation back 'reporting' the signal; how are the beyond places detected, if the outgoing signal is severely attenuated/bounced/impeded after crossing trough large distances with precipitation ? If relevant, take each - as a mile.
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Good day. Someone had milk in doubt of being apt for consumption, as 'expired' or kept a while unrefrigerated. Dumped on a vegetable garden soil. Someone had extra granulated plain sugar and spread it on the soil at a vegetable garden. Someone had a flour that did not like and spread it on a vegetable garden soil. Someone had yogurt, or used cooking oil, or orange juice and decided to spread it on the soil instead of the garbage can. What benefit can the plants get from such ? What harm can it cause to the plants ? -nothing composted-
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Greetings. These photoluminescence compounds absorb the energy of photons? by raising their energy level, then emit light on the energy decay. -I think- About intensity; the more energetic the exposure, the larger the emission return. Color... is violet/ultraviolet the light that energizes it the most ? Now; what about the time ? Exposing the photoluminescent material to light, I would say becomes 'charged' at the speed of light' . What if the exposure time is not 1 second but 1 minute ? What changes when light is released ? In other words, the exposure time affects the emission in intensity or duration or both ? ...and why ? Is the light emitted repeatedly 'recycled' internally by the compound (as its own decaying emission is re-absorbed and re-emitted)?
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Good day. Trying to visit a website typing only the domain and .com; the address appears as ww12. ------ domain.com and shows blank contents. What is happening ? Seen before a ww1 long ago but was able to access it.
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Thank you. No intentions of coating/spraying components; just wondering if the "presence effect" of such volatile compound-impregnated paper or cloth inside electronics instruments would be of help to prevent trouble. The something-impregnated felt torus that perform very well on automotive batteries; do those work by nearby "presence" or by contact with the terminals ?
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Hi. The manganese oxide becomes what after a discarded common battery is fully spent ?
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Hi. Once upon a time, saw silver utensils had a paper sheet in their box claiming the utensils would not need cleaning if such paper was kept in their proximity. Some 'magical' compound impregnated the paper My oscilloscopes are seeing little exercising of the buttons, switches, levers, controls lately... which I believe are mostly made of brass/bronze/copper. What compound could I keep inside electronic equipment that will prevent contacts to become tarnished and perform less than ideal, impregnating something ? I guess the electronic instruments would have to be covered to avoid air flow in them for such 'magic' compound to be more effective, right ?
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Thank you. Does it mean individual cells of the same tissue/organ ? That I do not understand, Would you please re-phrase ?
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Hello. If a DNA sequence is taken from some tissue of a creature -say liver- is compared to another tissue -say kidney- of the same; are they identical ? Should they be ?
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Ten years ago...
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Thanks. I always thought that unevenness in temperature would not be more than ~1C in the water in a boiling water pot. 99C to 100C and much has to do if covered. If cooking temperature is so critical, am done with it. And have my suspicion that in a larger amount of water boiling, temperature gradient would show greater than in a small vessel. OK. Leaving the pasta aside for another post, how to achieve the chestnuts buttery soft ?
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Hi. Have a good '23 Uneven results, some stay hard, some are enjoyable soft. What differs? The chestnut 'quality' itself, or soaking, or its size, or the time boiling, the depth of scaring, or else ? Read the pointy ones are edible and the rounded ends are not Some recipes call for boiling in an extra large pot with a huge amount of water compared with the volume of nuts in. I do not get what is the effect* Your expertise to obtain then very buttery soft, please ? *( as to boil pasta, why suggested in huge amounts of water and not simply submerged ? )
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Fear + ignorance = religion = that thing zillions of people pray about daily for the last 5000 years with zero point zero results nor a single response ever and will continue like that.
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Washing machine vibrations v ultrasonic transducer ?
Externet replied to Erina's topic in Engineering
Oh, I see. Your horizontal shaft drum instead of my vertical shaft kind of washer that the 'post agitator' fins do nothing in spin cycle. Well, in spin cycle your model does not much either. 🙂 -
Washing machine vibrations v ultrasonic transducer ?
Externet replied to Erina's topic in Engineering
Likely 1200 divided by 60 = 20 Hz -
Hi. I have this product with no use for it, but mailing would be too expensive at today rates. 😡 Perhaps you can find it in UK. Perhaps a do-it-yourself here :---> https://www.ecosia.org/search?q=diy hydrophobic
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Is there a food that never makes big bellies ? [nutrition]
Externet posted a topic in Other Sciences
Hi. Even eating such daily, in considerable amounts, which food does not contribute to build-up obesity ? -
Am sorry for the mental fart. The title I wrote shows 'FBI' and seems it is 'CIA' Do a correction if deserved.-
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Found this, anyone can create news stories with photoshop and anonymous characters. --> https://www.msn.com/en-us/entertainment/news/former-cia-agent-reveals-aliens-and-area-51-are-real/vi-AA14MsWI?ocid=mailsignout&pc=U591&cvid=c0cecc7a12bc452191354cfa2fdfc348
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Hi. As many say tomatoes are fruits; when having such in meals, salad, spaghetti sauce, ketchup, whatever... And nutrition suggests to have so many grams of vegetables and so many grams of fruits daily; where to count the tomatoes had ? Obviously as fruit intake ? 🙄
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Hello. - 11 Harrowhouse - Run a crooked mile ( if you can find them )
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Naming multiples and submultiples... ---> https://thevaultznews.com/world/scientists-expand-worlds-measuring-unit-system/