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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

For how many seconds should a moment of silence last?

A moment of silence typically lasts for 1 minute, which is equivalent to 60 seconds.

Why is your tempurpedic hard as a rock?

This is a fairly easy one, and in fact there is also a solution. Here are a few simple steps.

Steps:

1. Locate your mattress and spring box

2. Find the space between them

3. Remove the rock out from under your tempurpedic mattress

4. Lay back down on the mattress, it should now be fixed

I'm glad I could help you out.

P.S. Tempurpedics are perfect in every way, so if you think it is as hard as a rock you must be in fact laying on said rocks

Improved answer -

Tempurpedic mattresses become very hard when they are cold. As they heat up to the rooms temperature, they soften again.

Do women exert more pressure in heels or flats on the ground?

Women exert more pressure on the ground when wearing heels compared to flats. This is because the surface area in contact with the ground is smaller when wearing heels, leading to an increase in pressure. Additionally, the body weight is distributed differently in heels, causing more strain on certain areas of the foot.

Why do you have to turn the knob on a lamp clockwise to turn it on?

Because the knob is originally threaded, like a screw, which is how you attach the knob to the lamp. It is threaded clockwise, so that as you turn the knob in that direction, you don't unscrew the knob. On some lamps, turning it the other way removes the knob.

Is hydrogen in deoderant?

Hydrogen is a simple gas, odourless and tasteless. It would have no value as a deodorant.

Can magnets be melted?

Yes, magnets can be melted. Most magnets are made from metals like iron, nickel, and cobalt, which have melting points that can be reached in a furnace. However, the magnetic properties of a magnet may be altered or lost during the melting process.

How barometric leg concept works?

The barometric leg concept involves using differences in air pressure at different heights to create a continuous flow of water without the need for a pump. As water is removed from the bottom of a pipe, the air pressure at the top of the pipe pushes more water up to maintain equilibrium. By utilizing this principle, water can be lifted effectively in situations where using a pump may not be feasible or efficient.

Can you use witch-hazel for isopropyl alcohol?

No, witch hazel and isopropyl alcohol are two different substances. Witch hazel is a natural astringent with anti-inflammatory properties, while isopropyl alcohol is a disinfectant commonly used for cleaning and sanitizing purposes. They are not interchangeable.

Who was the father of James Prescott Joule?

James Prescott Joule's father was Benjamin Joule. Benjamin was a wealthy brewer who supported his son's early scientific experiments and education.

What is dry lime powder used for?

Dry lime powder is commonly used in various industries, including construction, agriculture, and water treatment. It is used to stabilize soil, improve pH levels in soil, as a flux in steel production, and to disinfect water by removing impurities.

Why cold working of lead is not possible?

Lead is a material that is very easy to reform, and it settles into a new crystal shape easily.

In this function it is used in seismic isolation systemsfor large buildings and bridges as an energy absorber. In one form, the lead forms a core at the middle of a set of sheets of rubber interwoven with steel sheets. This is the 'lead rubber bearing'. And a building may sit on perhaps 50 - 100 of these bearings.

An alternate form is the 'lead extrusion damper', roughly the same operation as a bike pump, but instead of air, it used lead as the plastic fluid which is pumped back and forth through a constriction. Both invented by Bill Robinson of Lower Hutt, New Zealand.

You're talking of a serious quantity of energy being dissipated in such a system. Hundreds of kW.

And simple cold working of lead is done with (wooden) hand tools for such asks as making flashing around where a chimney penetrates a roof.

How many isomers of decane?

Decane has 75 isomers, including straight-chain, branched-chain, and cyclic isomers.

How do bubbles fly?

Bubbles fly due to a principle called surface tension. The soap film of a bubble creates a flexible and thin layer that traps air inside. When air is blown into the soap film, it creates pressure that causes the bubble to float and fly in the air.

How many pennies fill a glass Sparkletts bottle?

i believe you should find the volume of the bottle and the volume of a penny and divide the volume of the bottle by the penny and you should get your answer. i may be wrong though

Why do you hear laser-like noises in a slinky?

The laser-like noises you hear in a slinky are due to the vibrations of the metal coils as they expand and contract while the slinky moves. These vibrations produce sound waves that travel through the material of the slinky and reach your ears.

What does the problem of energy get so much attention at the moment?

There are a number of reason why energy, specifically fossil fuels, is such an important issue at the moment. Below I have listed a few.

  • The price of crude oil is high. Often high cost is a reason to look for cheaper alternatives.
  • Fossil fuels are also not a renewable energy source. That means that once it is all gone, it is gone. This makes people look into what to do to replace it now and once it is no longer a resource.
  • Certain energies, such as gas and oil, don't burn very clean. As concerns about the environment grow, there is pressure to look for cleaner alternatives.

It is a pretty controversial issue, and when things are controversial people want to talk about them and share the opinions. There are many different ideas about, when, how, and where to begin the search and research for alternative energy sources.

What are the sister chromatids pulled by?

mitotic spindles from the centrioles during anaphase

spindles attached to the kinetechores (special protein in sister chromatin) of the sister chromatids are called kinetechore-microtubules and the that aren't are called nonkinetechore-microtubules

also during anaphase, the nonkinetechore microtubules elogate, also making the cell elongate

What objects would you find in the classroom that are opaque?

Some examples of opaque objects you might find in a classroom include books, desks, whiteboards, and cabinets. These items do not allow light to pass through them, blocking the view of what is on the other side.

Are fertilizer inorganic?

Fertilizers can be both inorganic and organic. Inorganic fertilizers are synthesized from minerals, while organic fertilizers are derived from natural sources such as plant or animal matter. Both types can provide necessary nutrients to plants, but organic fertilizers are often preferred for their sustainability and soil health benefits.

Is a calorimeter an open or closed system?

A calorimeter is typically considered a closed system because it is designed to prevent the exchange of matter with its surroundings during calorimetry experiments. The goal is to accurately measure the heat exchange between the system inside the calorimeter and its surroundings.

What is smaller then a microsecond?

A nanosecond is smaller than a microsecond. It is one billionth of a second.

Will a heavier ball travel farther than a lighter one from a catapult?

Well it depends. If the ball is too heavy than it won't move. If a ball is too light won't travel that far. If it's around the middle then it will travel really far if its launched at full force.

How does entropy relate to the physical world?

Entropy is random and explainable chaos. Many things that occur in life could apply to this, on a macro and microscale of things. It's science's way of saying stuff just happens and there is no way to scientifically explain it. Some say it's God will.

What is the effect of height on temperature?

Temperature tends to decrease with increasing altitude, known as the lapse rate. This is because the atmosphere becomes thinner at higher altitudes, allowing for less heat absorption and retention. However, local factors such as geography and weather patterns can also influence temperature variations with height.

Does the size of a ball affect how fast it goes when thrown?

Indirectly. There are many variables to throwing a ball. The size, for instance, can effect the efficiency of your hand, how well you can grasp it. However, it can also increase the wind-resistance if the size:weight ratio is high or low. This leads to the example of a 2-pound ball the size of a baseball or an extreme of a 2-pound beach ball inflated. You notice that you can throw the baseball at a good speed. However, if you use the same force on the beach ball, then you'll notice it goes slower. The wind-resistance is key to size.