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Miscellaneous
The Miscellaneous category is for a wide variety of questions and answers that we find important, but that have not found a home in one of our specific categories.
14,596 Questions
What role does the sun play in weather on earth?
The Sun is the reason for all of Earth's weather. The uneven heating of the Earth's surface is the basis for wind and pressure systems. Where there is little solar heating, cold air forms dense high pressure systems. Where there is considerable heating, convection and the Earth's rotation govern the movement of the heated air.
One possible solution could be to use a long-handled tool to reach the lamp and turn it off without leaving the bed. Another option could be to install a remote-controlled light switch so you can turn the lamp off from the comfort of your bed.
Truth refers to a statement or belief that corresponds to reality, meaning it accurately reflects the facts. Soundness, on the other hand, applies specifically to arguments and refers to a valid argument that also has all true premises, leading to a valid conclusion.
What is the largest number of children conceived naturally?
Duodecaplets (12) Sciortino de Allavatti, a 24-year-old woman, lost 12 fetuses in 1992 that were conceived without the use of fertility drugs. This is the highest number of feti known in humans naturally. According to wikipedia.
Lead is a heavy metal that is soft and malleable. It is not particularly strong or durable compared to other metals like steel or titanium. However, lead's density and resistance to corrosion make it useful in certain applications such as in batteries or radiation shielding.
Color code for nitrogen gas storage tank?
Nitrogen gas storage tanks are typically painted in a light blue color to indicate that they contain non-flammable and inert gas. This color code helps individuals identify the contents of the tank easily and ensure proper handling and storage procedures are followed.
A device used for gauging the torque on an object by converting the strain applied as a mechanical motion into an electronic signal. Any change in Capacitance, inductance, or resistance is proportional to the strain.
How many ounces in 1000 mililiters?
Ozs is a measure of weight, milliliters is a measure of volume. The two can not be equated unless you provide/know the density of the substance being measured.
For instance a 1000 milliliters of milk would weigh much less than 1000 milliliters of lead.
Are the columns of a house under tension?
Tension implies that it would be pulled. House columns are subject to compression.
Who determines twins the mom or the DAD?
Twins are the result of multiple eggs being fertilized (fraternal), or an egg splitting into two or more (identical). So, it is the mom who determines if it is twins or not. Having twins is common in some families although it can happen to anyone.
What is Triethoxycaprylylsilane?
Triethoxycaprylylsilane is a silicone-based ingredient commonly used in cosmetics and skincare products as a coupling agent and emollient. It helps improve the spreadability and texture of products, enhances skin adhesion for better longevity, and can also provide a smooth, silky feel on the skin.
How long does it take for light to travel a foot?
Scientists have defined the speed of light in a vacuum to be exactly 299,792,458 meters per second, which is 983,559,096 feet per second. So a ray of light in a vacuum could travel a foot in 983,559,096 millionths of a second, which is pretty fast.
What determines whether something tastes good and something that tastes bad?
Whether something tastes good or bad is determined by a combination of factors, including one's genetics, cultural influences, past experiences, and the balance of flavors in the food or drink. Personal preferences also play a significant role in determining what tastes good or bad to an individual.
Potash (potassium carbonate) is both mined and made.
Potash (potassium carbonate) and soda (sodium carbonate) have been used from the dawn of history in bleaching textiles, making glass, and, from about A.D. 500, in making soap. Soda was principally obtained by leaching the ashes of sea plants, and potash from the ashes of land plants. In their uses, potash and soda were largely but not entirely interchangeable. Indeed, before the mid-eighteenth century, people only vaguely differentiated between the two.
Potash-making became a major industry in British North America. Great Britain was always the most important market. The American potash industry followed the woodsman's ax across the country. After about 1820, New York replaced New England as the most important source; by 1840 the center was in Ohio. Potash production was always a by-product industry, following from the need to clear land for agriculture.
Most of the world reserves of potassium (K) were deposited as sea water from ancient inland oceans evaporated, and the potassium salts crystallized into beds of potash ore. These are the locations where potash is currently being mined today. The deposits are a naturally-occurring mixture of KCl and sodium chloride (NaCl), better known as common table salt. Over time, as the surface of the earth changed, these deposits were covered by thousands of feet of soil. Most potash mines today are deep shaft mines as much as 3,300 feet underground. Others are mined as strip mines, having been laid down in horizontal layers as sedimentary rock. In above-ground processing plants, the KCl is separated from the mixture to produce a high analysis natural K fertilizer. Other naturally occurring K salts can be separated by various procedures, resulting in potassium sulphate and potassium-magnesium sulphate.
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What is the density of white cement?
The density of white cement typically ranges from 3.0 to 3.2 grams per cubic centimeter.
How long can you last on a planet without any oxygen?
The exact length of time a person can survive without oxygen depends on various factors, such as individual health and physical condition. In general, the average human can survive for about 3-5 minutes without oxygen before experiencing brain damage or death.
What height does a feather have to fall from to kill you?
A feather falling from any height cannot kill a person because it is too light to cause harm. The force generated by a feather falling is negligible compared to the force required to cause harm to a person.
What is the angular speed of a particle performing 56 RPM along a circle?
56 rpm = 56 rotations per 60 secs. ω = 2π/T (from http://blade3891.tripod.com/id9.html)
ω is the angular velocity.
T is the period. This is the number of seconds it takes to complete one rotation. Since it takes 60 seconds to complete 56 rotations, it takes 60/56 seconds to complete one rotation.
T = 60/56.
so ω = 2π/(60/56) = roughly 5.86 radians per second
What is the time difference between London England and Orlando Florida?
I wanted to watch a live ppv online that starts at 8.00 (in orlando) and now i have to wait till 2am and ive got school the following morning.... any1 know dr Who?
PS Orlando is has a 5 hour time differense so when its midnight here its 5 there
How do you test for real amber?
(Test 1) HARDNESS.
Amber has hardness on Moh's scale in the region of 2 - 3. Using appropriate scratch sticks it should be reasonably straightforward to test the sample under question.
(Test 2) HOT NEEDLE.
Heat a needlepoint in a flame until glowing red and then push the point into the sample for testing. With copal the needle melts the material quicker than amber and omits a light fragrant odour. Amber when tested does not melt as quickly as the copal and omits sooty fumes.
(Test 3) SOLUBILITY.
Copal will dissolve in acetone. This test can be done by dispensing the acetone from an eyedropper onto a clean surface of the test specimen. Place one drop on the surface of the test piece and allow to evaporate, then place a second drop on the same area. Copal will become tacky; amber will remain unaffected by contact with acetone.
(Test 4) UV
Copal under a short-wave UV light shows hardly any colour change. Amber fluoresces a pale shade of blue.
(Test 5) FRICTION
Rub the specimen vigorously on a soft cloth. True amber may omit a faint resinous fragrance but copal may actual begin to soften and the surface become sticky. Amber will also become heavily charged with static electricity and will easily pick up small pieces of loose paper.
(Test 6) TASTE
An antique trader who specialised in amber beads introduced this test to me. She explained that one of the most reliable tests she used was to taste the amber specimen after washing it in mild soapy water and then plain water. Whilst she could make no distinction between copal and amber, she could easily identify plastics and other common substitutes because of their unpleasant or chemical taste. Amber has hardly any taste at all. As a method for identification I have not seen this procedure recorded elsewhere. I can vouch for its effectiveness as a non-destructive method of differentiating between amber and certain other substances often misleadingly labelled amber.
(TEST 7) FLOTATION (Specific Gravity)
Mix 23gms of standard table salt with 200ml of luke warm water. Stir until completely dissolved. Amber should float in such a mixture and some copals together with various plastics sink.
(TEST 8) INCLUSIONS
Infrequently amber contains Flora or Fauna inclusions. Correctly identifying the trapped Insect or plant should be an excellent indicator of a piece's authenticity. Most inclusions from ancient amber are of species that are now extinct or significantly changed. Frequently present in Baltic amber are tiny stellate hairs which are release by oak buds during their early growth and some time after,
(TEST 9) POLARISED LIGHT
Place the suspect piece of 'amber' between two sheets of polarising glass or plastic. (Kokin Filter Systems who sell lens accessories for cameras sell such products). Rotate one of the polarising lenses slowly through 360 degrees. In the body of the amber a display of rainbow colours should cycle through the transparent parts of the material. This is due to interference patterns being induced in the polarised light because of the internal strains and stresses within the amber itself. My general experience with this method is that genuine amber and copal always show these colour changes, where as some acrylics, polymers and certain plastic do not. Amber, which has been drilled and then later filled with a contemporary inclusion and resin also, reveals its self via the clear disruption of the colour display. Essentially; an amber piece which does not show interference patterns is unlikely to be true amber.
(TEST 10) KNIFE CUT
With a sharp knife try to shave off a tiny piece of the amber from an unobtrusive section. Real amber fractures and splinters. plastic and polymers actual cut and tiny shaved pieces can be removed without any splintering of the material.
"Identifying true amber (." Amber Home. 10 Mar. 2009 <http://www.gplatt.demon.co.UK/identify.htm>.
The term composition is used for any stable explosive, and "Composition A" and "Composition B" are other known variants. C-4 is 1.34 times as explosive as trinitrotoluene (TNT).
You tell me
What is the thing called that keeps rope on clothesline from drooping?
A pulley system is commonly used to keep the rope on a clothesline taut and prevent it from drooping. The pulley helps distribute the weight of the laundry, allowing it to move smoothly along the line without sagging in the middle.
What is shorthand for feet inches?
feet=ft. inches =in. More information In the UK - and maybe elsewhere - it is customary to us the single apostrophe for feet and a double apostrophe for inches, for example, 5' 2" = five feet and two inches. This is commonly used on plans and work diagrams where space for the full words, or even "ft" and "in" is too limited.
