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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

What are the pros and cons of lasers?

Pros: precise and accurate cutting/ablation, minimal damage to surrounding tissue, can be used in various medical procedures.

Cons: risk of accidental eye damage if not used properly, potential for burns or scarring if not controlled carefully, limited depth of tissue penetration compared to other surgical tools.

Do zoo plankton have legs?

No, zooplankton do not have legs. They are typically small, often microscopic, marine animals that drift in the water column and rely on ocean currents for movement. They may possess structures like cilia or appendages for propulsion, but not true legs.

How you make high ping?

High ping is often undesirable, however, if for whatever reason, you wish to raise it, one good way would be to utilize bandwith settings in conjunction with other programs, such as downloading a movie while playing an online game, this would raise your ping considerably. You could also consider downgrading your router to an earlier model if possible, and downgrading your internet connection to a slower speed, IE basic DSL service or Dial up.

How many batteries does it take to burnout a light bulb?

The number of batteries needed to burn out a light bulb depends on the type of battery and the power rating of the light bulb. Typically, for a standard household light bulb (60-100 watts), one high-power battery or two to three regular batteries might be enough to burn it out due to overload. However, attempting to intentionally burn out a light bulb can be dangerous and is not recommended.

How do you calculate mean velocity knowing diameter of the pipe and rate of discharge?

Calculation for water flow with 100mm pipe with pressure of 12 PSI.

Given

Dia of pipe =

100mm

Pressure=

12PSI= 0.84 Kg/cm2

Unknown

Velocity= ?

Discharge= ?

Q=AV……….1

Where V= Sqrt(2gh)

P=ρgh

0.84

=

1000x9.81

x h

h=

0.856269

m

Velocity=

Sqrt(2gh)

Sqrt(2*9.81*0.856)

v=

4.098136

m/sec

Flow=

AV

Q=

πxsqr(d)xV/4

Q=

3.14*.1*.1*4.098/4

Q=

0.032169

cum/sec

Q=

32.1693

liters/sec

Q=

1930.158

liters/min

Q=

115809.5

liters/hr

Does a light bulb have vacuum in it?

Yes, the inside of a light bulb is vaccum sealed to increase the lifespan and brightness of the bulb. If there was air in there, the filiment would burn up and not last very long. This was an important discovery made by Thomas Edison when he invented the light bulb.

Why you are not able to balance in a two wheeler while it is not moving?

The two wheels on the bicycle act as gyroscopes, so their spinning is what keeps them upright. While the wheels are not spinning the gyroscopic force is not there, so, of course, it falls over just as a pyramid placed on its tip would.

Why does flickering occurs in lamps?

All lights flicker its just that they do it so fast you don't see it, but when you can tell a light is flickering it is underpowered, try changing the plug if its not the original one to a higher amped.

How is an airplane similar to a paper kite?

Both airplanes and paper kites rely on aerodynamics to fly through the air. They both have wings that generate lift to keep them airborne. Additionally, both can be controlled by changing the angle of their surfaces to steer and maneuver.

Why is a perfect vacuum impossible in nature?

Due to quantum uncertainty and the fact that pairs of particles and anti-particles pop into existence at completely random places within a true vacuum (think of the space very close to a singularity) and instantly annihlate each other creating photons which , in theory would destroy the ideal vacuum you speak of.

Why s8 ring is non planar?

The sulfur atom in an S8 ring has a much larger atomic radius compared to carbon atoms in a benzene ring, resulting in greater steric hindrance. This leads to the S8 ring adopting a non-planar crown conformation to minimize repulsive interactions between the sulfur atoms.

What are the difrence between solids and liquids?

Gases are free to completely fill any closed container. (or escape if it is not closed.)

Gases are easily compressed. Gases can be chilled to a liquid form.

Liquids will only fill their container till the capacity needed is filled. Liquids are difficult to compress. Liquids can be chilled to a solid form. (Helium excepted).

Solids are of a fixed shape at any moment (though we may bend them etc), and are very difficult to compress.

And of course, the inverse applies, a solid may be warmed to make a liquid, and further warming of a liquid will make it into a gas.

[There are some other states of matter, which we ignore here.]

Will rust burn off in high temperatures?

Rust is actually the result of a chemical reaction between iron, oxygen, and moisture, so it does not "burn off" in high temperatures. However, heating rusted metal can cause it to become more brittle and flaky, making it easier to remove through mechanical means like scraping or brushing.

Can you use a 500watt subwoofer with a 1000watt amp?

Yes, you can use a 500W subwoofer with a 1000W amp. Just be cautious not to crank up the volume too high to avoid damaging the subwoofer. Make sure to properly set the gain levels on the amp to match the subwoofer's power handling capabilities.

How many tons of hydrogen did Germany produced in the thirties?

Germany produced approximately 28,000 tons of hydrogen in the 1930s. This hydrogen was used for various industrial purposes, including the production of synthetic fuels and chemicals.

How does the distance from a page to a light bulb affect the amount of light that illuminates the paper's surface?

The intensity of light or other linear waves radiating from a source is inversely proportional to the square of the distance from the source; so an object (of the same size) twice as far away, receives only one-quarter the energy.

Who is inventor of vitamins?

The concept of vitamins was developed by Polish biochemist Casimir Funk in the early 20th century. Funk discovered that certain illnesses were caused by deficiencies in specific substances, which he named "vitamins" to signify their vital importance in nutrition.

What happens if you bypass thermostat in refrigerator?

You would have to use alternative means to regulate the temperature that's all. But their is potential of it not working, being to warm to safely cool food or becoming to cold to keep things from becoming solid ice

How is hurricanes and blizzard alike?

Hurricanes and blizzards are both powerful and dangerous weather phenomena that can cause significant damage. They both involve strong winds and precipitation, although in different forms - hurricanes bring heavy rain and storm surges, while blizzards bring snow and ice. Both require preparation and safety measures to protect life and property.

How does a light bulb in a projector make all the colors?

The colors are not created by the bulb. Instead, some form of filter (film, slides, transparent writing surfaces, etc) is placed between the bulb and the screen (or whatever surface onto which the light is being projected). The filter blocks certain portions of light from passing through, and allows others. The result is that a lighted version of the filter's coloration pattern (picture, writing, etc) is visible on the screen or surface.

What are the raw property Plantium in raw?

Plantium can be found in raw form as a shiny, silvery-white metal. It is quite rare and typically occurs in nature as a byproduct of mining other metals such as nickel and copper. Plantium is known for its high melting point, corrosion resistance, and conductive properties, making it a valuable material in various industrial applications.

Why is pH4 stronger than pH6 Is because it far away from 0?

Ph 4 is not necesarilly stronger than pH 6. It depends on your vantage point. There are 14 levels of pH. 0, 1, 2 ,3 etc. The level 8 is a neutral substance. The closer to 0 u go, the stronger the BASE. The closer to 14 you go, the stronger the ACID. Therefore, it makes sense to say that 4 is a stronger base than 6 because 4 is closer to 0, however, 6 is a stronger acid than 4 because it is closer to 14. It is important to know however that botch 4 and 6 are bases, and not acids, because they are both below 8. Though this is true, it is possible for one to be more or less acidic than the other, and this is true with both acids as well when referring to bases.

What does 6litres of epoxy resin weigh in kilos?

That would depend on the weight per liter of the resin you're using. You don't have enough information in your question to help us provide an answer.

Does a drum set radiate sound energy?

Yes, a drum set radiates sound energy when it is played. This sound energy is generated through the vibrations of the drum heads and cymbals, which produce the audible sound waves that propagate through the air.