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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

How do you calculate BTU heat gain based upon electric watts?

1 Watt = 3.412141633 BTU/hour, so multiply the number of watts (that are converted to heat) by the factor, to get BTU per hour.

Multiply this by the number of hours that it is running, to find BTUs.

How do you find a strongest color?

To find the strongest color, you can analyze the saturation level of different colors. The color with the highest saturation level (most intense or vivid) can often be considered the strongest color in a given context or composition. You can use design tools or color picker tools to measure saturation levels visually.

What is the process of using the arrow keys to move an object in a small precise increments?

To move an object in small precise increments using the arrow keys, you typically select the object, then press an arrow key to nudge it in the desired direction. Each press of the arrow key will move the object by a predetermined increment, allowing you to make precise adjustments. Some programs may also allow you to hold down a modifier key while pressing the arrow key to move the object in even smaller increments.

How do you know that your galaxy s5 is water damaged?

Turn off your phone, take off the back and take out the battery. look in the area where the battery sits for a small square sticker. if its white there is no water damage, if the sticker is pink or red the phone has suffered water damage.

What is the purpose of californium?

The isotope 252Cf is a very strong neutron source; some applications are:

- neutron's detectors for water and petroleum

- control of nuclear fuel rods

- treatment of some cancers by neutron irradiation

- neutron radiography in industry

- neutron activation analysis in mobile installations

What happens when you overheat a bearing?

When a mechanical bearing becomes overheated for whatever reason, the lubricating material will become less viscous, and the danger of metal-to-metal contact increases. This will lead to the failure of the bearing.

Did periscope use convex or concave mirror?

The basic periscope uses flat mirrors, to bend and offset the optical path.

If magnification is required, then the periscope will use convex objective and

eyepiece lenses, becoming a refracting telescope with an offset in its optical path.

What is a military class 4 laser?

A military Class 4 laser is a high-power laser device often used in military applications for tasks like target designation, range finding, and blinding enemy sensors. It emits a laser beam with an output power greater than 500 milliwatts, posing potential risks to eye safety and requiring strict safety measures during operation.

What is depth-charging in writing?

Depth-charging in writing refers to incorporating multiple layers of meaning or complexity within a piece of writing. This can involve adding depth to characters, themes, or plot elements in order to engage readers on a deeper level and provide a richer reading experience.

What is Difference between ginning and spinning?

Ginning is the process of removing the seeds from raw cotton, while spinning is the process of spinning the cotton into yarn.

Where did the 1000 Hz sound come from?

Humans hear sounds best in the 1,000 to 5,000 Hz range which is where speech is centered. That is why they chose the 1,000 Hz as the test tone. Being on the lower range it is more omnidirectional and can be heard easier than any other frequency. The term Hertz (Hz) comes from the German physicist Heinrich Rudolf Hertz.

What is the most powerful laser researchers can build?

Currently, the most powerful laser built is the Extreme Light Infrastructure (ELI) Beamlines facility in the Czech Republic. It has a peak power of up to 10 petawatts, which is 10 million billion watts. This laser is used for various scientific experiments, including studying particle acceleration and ultrafast phenomena.

Ortho effect on acidity of carboxylic acid?

The ortho effect refers to the decrease in acidity of a carboxylic acid when bulky substituents are present at the ortho positions of the phenyl ring. This is due to the steric hindrance caused by the bulky groups, which makes it more difficult for the carboxylate anion to be stabilized, resulting in lower acidity.

How much does the acer chromebook weigh?

The base model weighs 2.76 pounds. The upscale model weighs 2.98 pounds.

What the significance of file organization and management to international revenue services?

Proper file organization and management are crucial for international revenue services to maintain accurate records, ensure compliance with tax laws, and facilitate efficient retrieval of information during audits or investigations. Having well-organized files helps revenue services track tax liabilities, detect tax fraud, and make informed decisions about taxation policies. Failure to manage files effectively can result in delays, errors, and potential revenue loss for the government.

Is a microwave a conductor?

I'll assume that you're talking about the kitchen appliance that cooks with

microwave radiation, called a "microwave oven"

Many parts of the appliance are made with plastic, glass, and rubber. Some of

those parts conduct heat, and others don't. None of them conduct electricity.

Other parts are made with metals. Those parts do conduct heat and electricity.

No, a microwave is not a conductor producing heat, its actually a glass tube, that transfers electric energy into an electromagnetic wave, which happens to excite water molecules.

Who invented the world?

The concept of the world as we know it was not invented by any one person. The world's existence and formation is attributed to natural processes and scientific theories such as the Big Bang theory for the creation of the universe and Earth's formation over billions of years.

What are some examples of turning electricity into light?

This occurs in light bulbs, LEDs or any other light-emitting devices you may think of. Basically, electrical energy is converted into light energy when it passes through the circuit of these components.

How much work did you do if you apply 1000 n to push a car?

The work you did is

(1,000 times the distance for which you kept pushing, in meters) joules.

Notice that if the car doesn't move, then you do no work, no matter

how hard you push, pant, or perspire.

What is the heart of an oscilloscope?

The heart of an oscilloscope is the cathode ray tube (CRT) or the digital display screen. This is where the waveform of the input signal is displayed for analysis and measurement. The CRT or display screen is responsible for generating the visual representation of the electrical signals being measured.

What factors are considered in the selection of dc machine?

The initial factors are the working voltage and power level required. These set the size of the machine.

There are three types of dc machine depending on how the internal magnetic field is produced. A permanent magnet machine gives a constant excitation field and is preferred for smaller motors since no field winding is needed and the machine is therefore simpler.

A shunt-wound machine has the field winding in parallel with the armature (the rotating part) and is the commonest type of dc machine. This is used for high-power motors or generators (they are the same thing) where the speed of operation is fairly constant.

A series-wound machine has the field winding in series with the armature. This type is used in traction, to drive trams and trolley-buses. The torque produced by a dc machine is proportional to the field current and also to the armature current, so a series motor produces torque proportional to the square of the current. When starting, the motor draws a high current limited only by the resistance in circuit, so the torque is very high and suitable for starting the vehicle. A switched starting-resistor keeps the current within limits.

A standard shunt-wound motor acts as a motor when a mechanical load is applied, but if the motor is driven faster than it rotates naturally without a load, then power flows back into the supply and it becomes a generator.

A shunt-wound motor tends to behave as a capacitor because the starting current is high and it then reduces exponentially as the rotor gathers speed. If the supply is disconnected, the terminal voltage reduces exponentially as the speed runs down. In a capacitor the energy is stored in the electric field while in the dc machine it is in the kinetic energy of the rotor.

What is the smallest measurement of flow of electricity?

Electron flow is measured in Amperes or 'Amps'.
The SI prefix as of 2009 would make it yoctoamperes or 'yoctoamps', and that would be 0.000000000000000000000001 or 1000-8 or 10-24 amperes.

What do you call the type of engineer that designs bridges?

civil engineers, structural engineers, and architects are the main bridge builders.

Can a 1000 mah battery replace a 400 mah for solar lights?

No, a 1000 mAh battery should not replace a 400 mAh battery in solar lights unless the system is designed to handle the higher capacity. Using a battery with a significantly higher capacity than what the system is designed for can potentially damage the circuitry and reduce the efficiency of the lights. It's best to stick with the recommended battery capacity for optimal performance.

Can you eat a battery?

No, you should not eat a battery as it can be toxic and harmful to your health. Batteries contain chemicals that can cause serious health issues if ingested. If you suspect someone has ingested a battery, seek medical help immediately.