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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 much is 36.0 kg equal to in ounces?

1 kilogram equals 2.204 pounds. 1 pound equals 16 ounces. I'll leave you to do the math.

How can you tell if an element will conduct energy?

Elements are in fact a bundle of energy if you will. I believe what your asking is How can you tell if an element will conduct electricity.

If an atom contains less the the required atoms for its outer shell to become full and stable, it is classified as a conductor.

Here's why: The atoms of a given element is composed of the protons, neutrons, and electrons. Electrons are the "electricity" part of an atom. These electrons orbit the protons and neutrons that are at the center of the atom. The electrons are in Valence shells, which is basically which orbit the electrons are on, the closest shell/orbit can contain only 2 electrons, and then it is said to be stable and full; the second valence shell/orbit can only contain 8 electrons, and then it is said to be stable and full; the third valence shell/orbit can only contain 8 electrons, and then it is said to be stable and full also ect.... Now, if we took the third valence shell, and it only contained 1 electron, it is NOT stable and full, so this 1 electron/electricity-part-of-the-atom is free to float around to other empty shells. This is due to the fact that the electrons always want to be in a stable shell/orbit. Some atoms of certain elements naturally contain a full AND therefore stable outer valence shell, (the furthest shell/orbit away.)

If an atom contains less the the required atoms for its outer shell to become full and stable, it is classified as a conductor.

What is chemical taxonomy?

Chemical taxonomy is a classification system that groups organisms based on their biochemical characteristics, such as the composition of cellular molecules or metabolic pathways. This approach helps to provide insights into evolutionary relationships between different species and can be particularly useful in studying microorganisms and plants.

Does sliding down a fire pole hurt?

If done correctly, it should not. Firemen and others have been taught how to safely descend on a fire pole.

What is meant by E equals E2-E1?

The equation E = E2 - E1 refers to the change in energy (E) between two states, where E2 is the energy of the final state and E1 is the energy of the initial state. This equation is commonly used in physics to calculate the difference in energy between two points in a system or process.

What is the capacity measurement?

Capacity measurement is made with your standard lineal measure unit taken it to the 3 (Cubical units), e.g:

1 cubic foot equals 1728 cubic inches.

The international system is with litres, metres, etc.

What material shields from infrared detection?

Materials such as metal, carbon fiber, and ceramics are known to shield from infrared detection. These materials are effective at absorbing or reflecting infrared radiation, making it harder for infrared sensors to detect objects covered with them. However, no material can provide complete invisibility from infrared detection.

How much does 1sq meter of 4mm glass weigh?

The weight of 1 square meter of 4mm thick glass is approximately 10.5 kilograms.

What is the first invented whitening soap?

The first commercially produced whitening soap was likely introduced in the early 20th century with ingredients such as kojic acid or papaya extract to lighten skin tone. However, it's important to note that the concept of whitening soaps has been culturally prevalent in many regions for centuries, using natural ingredients like milk, honey, or turmeric for skin lightening.

How do you clean capillary?

To clean a capillary, simply flush it with a cleaning solution such as alcohol or a cleaning agent recommended for capillaries. Use a syringe to push the solution through the capillary, then rinse it thoroughly with distilled water. Finally, dry the capillary thoroughly before reuse.

What is a 3D sensor?

I could be wrong but it's a camera that can see in 3 dimensions it's mostly used for tracking things such as games that follow the movement of your body. For instance Microsoft's Kinect is a 3d sensor for Microsoft Xbox 360

What is different between a definition and declaration of a variable?

A declaration and definition of a variable are nearly synonymous, especially as it is found in source code. However, the concepts are separate. The definition of a variable may include variable name, type, scope, operating range, and initial value(s). Program documentation includes only the definition of a variable; not the declaration. It defines the meaning and use of a variable. Whereas the declaration of a variable indicates to the compiler/interpreter that the name should be recognized as a variable. Understand that when the variable declaration is given in source code it may include the definition, though not always. In some languages a variable may be declared and then defined later as to type, operating range, et al.

Why are there ripples on water bottles?

The rings and indentations are to make the bottle stronger and resist collapse when held and pouring. The walls of plastic bottles are often very thin and a pure cylinder would collapse easily when the pressure required to hold and pour from an open bottle is applied causing spilling.

What will happen when switches s1 and s3 are closed?

When switches s1 and s3 are closed, the resistors in the circuit will be in parallel, resulting in a lower total resistance. This will increase the current flowing through the circuit and may cause the bulbs or other components to become brighter or draw more power.

What is the difference between speed and torque control?

Speed control is used to regulate the speed of a motor by adjusting the voltage or current supplied to it. Torque control, on the other hand, focuses on regulating the amount of force or rotational power produced by the motor. Speed control is more about maintaining a desired speed, while torque control is about adjusting the motor's output force.

What does thermochromic pigment do?

Thermochromic pigment is a kind of special powder that can change color with temperature,when temperature get rise,it would change color from colorful to colorless,or from one color to the other color,it has been widely use for textile printing through screen printing,or plastic by injection,as well as mugs by painting,it can be applied on many things.

What image will be formed in magnifying glass?

A magnifying glass forms a larger and magnified virtual image of the object being observed. The image appears upright and is located behind the magnifying glass at the point where the light rays converge.

What the range of radar?

well radio waves used in radar travel at the speed of light in a funnel shape pattern the range of radar depends on type of radar and what frequency it uses The ARPA Long-Range Tracking and Instrumentation Radar (ALTAIR) was developed and built at Roi-Namur in the Reagan Test Site between 1968 and 1970. and can detect objects in space so that gives u an idea of how far they can goas radio waves travel the speed of light 186,282 miles

Why can a watch get moisture inside without getting wet?

Yes, a watch or a compass, or a cell-phone would have to be hermetically sealed very well in order to survive everyday pressure changes such as aircraft flight, weather pressure cycles and so on.

A well-designed mechanism may incorporate a small air bladder to absorb these changes, but no simple apparatus will do so.

When the air enters the device, due to pressure changes say, it will carry with it some water vapour, and regrettably, this will condense into liquid water when some part of the device gets cool. And it is not simple for this water to evaporate again.

What is the pressure of air into liquid form?

Both Nitrogen and Oxygen may be liquefied at normal atmospheric pressure simply by cooling them enough. Carbon dioxide has to be pressurize as well as chilled to turn it into a liquid.

In this form, it is commonly used as an industrial solvent. For example to produce decaffeinated coffee.

What is a thin cylinder?

A thin cylinder is a solid figure with two parallel and congruent circular bases. It has a curved surface connecting the two bases. In a thin cylinder, the height is much smaller than the radius of the circular bases.

Why direct current cannot be used for domestic use?

Direct current (DC) has limitations for domestic use because it cannot be easily transformed to higher or lower voltages like alternating current (AC) can. AC is more efficient for long-distance power transmission and can be easily converted to different voltages using transformers, making it more practical and versatile for domestic applications. Additionally, most household appliances are designed to run on AC power, making it the standard choice for residential electricity.

How does a pachymeter work?

A pachymeter is a medical device used to measure the thickness of the cornea in the eye. It typically uses ultrasound technology to calculate the thickness by measuring the time it takes for sound waves to travel through the cornea and return to the device. The results are then displayed on a screen for the clinician to interpret.

What is the difference between discoverable and visible?

discoverable means you can "find" something even if it is not readily visible, and visible means you see something that is very apparent. So its a big difference between the two.

As an example:

The gas held within Marcellus Shale in Pennsylvania is not visible, and was not discoverable until someone hypothesized that certain rock layers might hold reserves of natural gas. The presence of the gas is not visible in any context; the only proof it exists is when natural gas comes to the surface via pipes after the rocks are fractured using specialized new technology called 'fracking'.

Similarly in the 1800s, oil under the earth's surface was not visible and its only presence seen by the naked eye were random pools of oil which Native American Indians used by scraping off the top of the small pools. At one time, this petroleum oil was used to treat a variety of medical conditions. But no one had the ability to extract the oil from under the surface until men used the basics of water-well drilling to design the first oil derrick drill (see Drake's Oil Derrick in Pennsylvania). Once men began drilling and hit an oil pocket, it was carried to the surface via pipes and collected, at which point the oil was visible and measurable.

Electrical current was visible to inventors, primarily through lightning. But the process to make an electric light had to go through a discovery process -- discoverable-- before citizens could benefit from the electric light/bulb. But, even now, the various components that make electricity work are largely invisible to everyday citizens-- only things like electrical cords, electrical outlets, lamps, and bulbs are visible, but what makes each work is mostly hidden from direct viewing.

In Law, 'discovery' relates to sharing known evidence. Evidence may be something visible-- a murder weapon, for example-- while other evidence may or may not be discoverable--for example, the motive behind a murder.

The bridge between what is visible (known, seen) and what is discoverable (unknown, unseen) is often an "hypothesis". Whether it's a Prosecuting Attorney trying to build a logical case, or a scientist trying to prove a logical outcome, both use hypothesis (thinking about and choosing a specific idea) to try to make something discoverable and / or visible. For example, a Prosecuting Attorney knows that phone records can often prove a suspect's prior where aouts; he hypothesizes that he can prove a defendant is guilty by reviewing the phone records. Einstein hypothesized over many ideas that ended up being his inventions.

What is the function of bulb in frequency of ac mains by electrically vibrating rod?

The bulb in the frequency of AC mains by electrically vibrating rod acts as a visual indicator of the frequency of the vibrations produced by the rod. As the rod vibrates at the frequency of the AC mains, the bulb will flicker or light up in synchronization with the vibrations, providing a way to visually observe the frequency.