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Technology
The practical application of knowledge, especially in a particular area, is called technology. Advances in technology affect every area of our lives. This category is for questions about technology and includes everything from how to remove a scratch from a CD to applications of electronics to what polyester is made from and more.
35,090 Questions
Why do more youngsters wear minus power glasses?
More youngsters are wearing minus power glasses due to increased screen time from devices like computers and smartphones. Prolonged use of screens can cause eyestrain and lead to myopia (nearsightedness) in a younger demographic, hence the need for corrective glasses. Additionally, genetics and environmental factors may also contribute to the prevalence of myopia in younger individuals.
some of it's common uses are as food seasoning , for good safety to melt snow & ice , salt licks for cattle and for medicinal purposes . HALITE is also the most important ore of the elements sodium & chlorine.
Halite is another name for table salt.
What term is defined as the study of existence?
Ontology is the term defined as the study of existence, being, or reality. It focuses on questions related to what exists and how things exist.
Radio waves are a form of electromagnetic radiation, not sound energy. Sound energy is created by vibrations in matter, while radio waves are produced by accelerating electrical charges. Radio waves need a medium (such as air or space) to travel, but sound energy can also travel through solids and liquids.
Why guitar is an sound energy?
All sound is energy no matter what energy source makes it. The sound waves from your guitar is the same type of energy as from your mouth/voice or loudspeaker. Sound-waves need some 'matter/medium' to travel through. A few examples could be the air, wood, concrete or metals for that matter.
This means that sound cant travel through a absolute vacuum (Like in space).
Sound will go faster or slower through different materials and is why your voice pitches up when talking through helium gas instead of breathable air.
sound level is a logarithmic measure of the effective sound pressure of a sound relative to a reference value. It is measured in decibels (dB) above a standard reference level. The commonly used "zero" reference sound pressure in air is 20 µPa RMS, which is usually considered the threshold of human hearing (at 1 kHz).
If you measure the voltage and current running through a loudspeakers coil you can calculate the power consumption in watt (watt=volt*amperes) drawn from your amplifier. If you measure the sound energy leaving the speaker, you'll see that it is a bit lower than the energy drawn by the coil. The lost energy is disposed as heat (due to friction/resistance) in the metal and moving parts of the speaker. This is also called the power factor. (cosφ)
How is chi pendant resistant to water?
Chi pendants are often made of materials that are waterproof or water-resistant, such as stainless steel or silicone. This allows them to be worn in water without being damaged or losing their effectiveness. Additionally, some chi pendants are coated with a protective sealant to further enhance their resistance to water.
How do you converte tons into amps?
Tons is a unit of refrigeration capacity, while amps is a unit of current. The conversion between the two depends on the type of load (inductive, resistive, etc). Without knowing the specific details, a direct conversion is not possible.
Valence electrons are in the outer shell of the atom. The first column (group 1)has a +1 valence, which means that it has an extra electron it can 'lose' when bonding with other atoms. The 2nd column (group 2) has +2. The same goes for groups 3. Group 4 can gain 4 and lose 4. Group 5 can 'gain' 3 electrons, group 6 can gain 2 electrons etc.
How does an autosum formula differ from an average formula?
An autosum formula calculates the total sum of a range of cells, while an average formula calculates the average value of a range of cells. The autosum function adds up the numbers in the selected range and can be applied to any numerical data, whereas the average function calculates the arithmetic mean of the numbers in the selected range.
Air can vary in temperature, so it can be cold or hot depending on the environment. Cold air is denser and can feel refreshing, while hot air is lighter and can feel warmer on the skin.
What is a fired thrown or otherwise propelled object?
A projectile is a fired, thrown, or otherwise propelled object that is intended to hit a target. Examples of projectiles include bullets, arrows, and cannonballs.
In Australia, 500 watts is the same as anywhere else in the world. It is a unit of power measurement and would represent the same amount of power whether you are in Australia or elsewhere.
"Pencil to ink" refers to the process of creating a finalized drawing or design by transitioning from a pencil sketch to using ink for the final lines. This is a common technique used in art and illustration to add more definition and detail to the initial pencil drawing.
How you can make a oscillator without using LC?
You can create an oscillator without using LC components by using an operational amplifier (op-amp) configured as an astable multivibrator. The op-amp can generate a square wave output using resistors and capacitors to create the necessary feedback loop for oscillation. This circuit can provide a stable frequency output without the need for inductors or capacitors.
What is the MIC values of amoxicline?
The minimum inhibitory concentration (MIC) of amoxicillin can vary depending on the specific bacteria being targeted. However, typical MIC values for common bacteria range from 0.015 to 2 μg/mL. It is important to perform susceptibility testing to determine the exact MIC for a particular bacterial strain.
What is the cost of Thermosetting plastic?
The cost of thermosetting plastic can vary depending on the type, grade, quantity, and supplier. Generally, thermosetting plastics tend to be more expensive than thermoplastics due to their enhanced durability and heat resistance properties. Prices can range from a few dollars per pound to upwards of $10 or more per pound for specialty grades.
What meant by the pitch of a coil?
the pitch of a coil referes to the angle or degree at which the coils slant. in example you will have a different pitch in the thread of metric and imperial screws. also rough and fine thread. hope that helped
Why do you have to watch the levels for each track in garageband?
Watching the levels for each track in GarageBand helps ensure that the audio signal is not too loud (distorting) or too soft (indecipherable). Properly monitoring levels can help you achieve a balanced mix, prevent clipping, and maintain audio quality throughout your project.
Why the ttl change in the same ping?
The TTL (Time to Live) value in a ping packet decreases by 1 each time it passes through a router. This helps prevent packets from circulating endlessly in a network. When a TTL reaches 0, the router discards the packet and sends an ICMP Time Exceeded message.
Torque is defined as a measure of how much a force acting on an object causes that object to rotate. The object rotates about an axis, which is called the pivot point. Let the force acting on it is 'F'. The distance from the pivot point to the point where the force acts is called the moment arm, and is denoted by 'r'.
Now, torque, τ = r * F = rFsin Ѳ
Hence, torque is the cross product between the distance vector (the distance from the pivot point to the point where force is applied) and the force vector, 'a' being the angle between r and F. We are taking cross product because the variables involved are vectors. Note that the distance in this case is a vector.
What is a hotter temperature 75 mic or 125 mic?
125 degrees Celsius is hotter than 75 degrees Celsius.
What is the meaning of 399 pixel?
399 pixels refers to the number of individual points of color that make up an image or display across a width of a screen or image. The more pixels there are, the higher the resolution and clarity of the image.
How does radiation kill a man?
Additional info (Razor512):
radioactive particles damage internal structures of cells, while in most cases the cell will just die, but if radiation hits a cell while it is dividing then it will damage the genetic info in the cell and you can either end up with a non functioning cell which dies, or a cancer cell that does the wrong thing and makes you very sick.
If you look at cases such as the Chernobyl disaster, you will see cases of people having their skin fall off due to the damage caused by radioactive particles.
radiation destroys pretty much any type of biological cell and enough of it will dissolve skin and bone (and a high enough output can even eat away at metal).
What are the methods to find capacitance of a capacitor?
You could measure it with a Capacitance meter. Or you could use the formula:
In a parallel plate capacitor, capacitance is directly proportional to the surface area of the conductor plates and inversely proportional to the separation distance between the plates. If the charges on the plates are +q and −q, and V gives the voltage between the plates, then the capacitance C is given by
For further info on the total value of capacitance in series or parallel, Google it.
What is the full range of wavelength?
The full range of wavelengths in the electromagnetic spectrum extends from extremely short gamma rays with wavelengths less than 0.01 nanometers, to extremely long radio waves with wavelengths over thousands of kilometers.
