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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
Which objects have stored energy?
Some examples of objects that have stored energy are a compressed spring, a stretched rubber band, a charged battery, and a lifted weight. These objects contain potential energy that can be released and converted into kinetic energy when the stored energy is released.
Superconductivity was first discovered by Dutch physicist Heike Kamerlingh Onnes in 1911. He observed that the electrical resistance of mercury suddenly disappeared at very low temperatures, a phenomenon known as superconductivity.
Velocity is uniform when an object moves at a constant speed in a straight line without changing direction. This means that the object covers equal distances in equal intervals of time. Uniform velocity indicates a consistent rate of motion without acceleration or deceleration.
Does human nail conduct current?
Yes, human nails can conduct electricity as they contain water and salts which can allow current to flow through them. However, nails are not as good conductors as metal materials due to their higher resistance.
How does submarine will move forward and backward?
A submarine moves forward by using its propeller, which is powered by an electric motor or diesel engine. To move backward, the submarine can reverse the direction of the propeller's rotation or adjust the angle of its hydroplanes to control its depth and direction.
What is the Difference between klystron tube and twt?
Klystron tubes use velocity modulation of electron beams to amplify microwave signals, while traveling wave tubes (TWTs) use interaction of electron beam with a slow-wave structure for signal amplification. Klystrons have higher efficiency but limited bandwidth, while TWTs have lower efficiency but wider bandwidth. TWTs are commonly used in satellite communication and radar systems.
What is the highest stage in scuba diving license?
Under PADI from lowest to highest, certifications levels are
Open water, Advanced Open water, Rescue Diver, Dive Master and Instructor. Dive Master and Instructor are professional ratings.
How does a condenser convert gas into liquid?
steam from the turbine passes through tubes that are suurounded by water that is cooler than the steam
the steam is therefore cooled
the steam then turns back into water
condensation
=condensor
How long will it take for all of the petroleum based fuels to be depleted?
Unknown, because they are constantly finding new fossil fuels and new ways to get at the fuels. Additionally, new technologies have been developed that can extract more fuel from previously depleted fossil fuel fields. An example is the 2 newly discovered oil fields in the continental United States that are huge.
How galvanometer measures the charge?
A galvanometer measures charge by detecting the flow of electric current through a coil of wire which generates a magnetic field. As charge flows through the coil, it causes a deflection in a needle or pointer on the galvanometer's display, indicating the magnitude of the charge passing through the circuit.
How do you know if your gameboycolor is charging?
When the Game Boy Color is charging, an orange LED light located near the screen should be illuminated. This light signals that the device is actively receiving power to charge its battery. You can also verify the charging status by observing the battery icon on the main screen, which may show a moving indicator or different color when the device is charging.
What is working of sixth sense technology?
It is a wearable and gesture driven computing system to turn the physical world with digital information.
The current prototype of Six Sense Technology consists of a Camera alongwith a projector, (sized about a cigerette packet) which is worn in the neck. There is an accompanying smart phone which runs the sixth sense software and handles its connection with internet.
The camera senses the movement of fingers and thumb of the user and also work as a digital eye.
Based upon it, it searches the relevant infromation to the situation in the internet. The the connected projector will shows the related content on anything whether it is a wall, paper or newspaper.
Further, It is the vision for computing system that it should understand itself who is the user, what he wishes, where is he and to whom he want to interact with.
Vision:
just draw @ in the air and you can check your emails on the wall.
Just make a frame with your hands or fingers to click a photograph.
You can check any travelling related information as flight delay etc. on your hand only.
How do you find wavelength of given light source using fresnel's biprism?
Using biprism interference pattern can be produced. Therefrom the band width beta is to be measured. Now using the formula, beta = lambda*D/d
Here lambda is the required wavelength of the source light. D is the distance of the screen from the virtual sources. d is the distance between the two virtual coherent sources. Knowing beta, D and d, required lambda could be calculated.
How do you make lock disappear from us magnum 1000 xr scale?
To make the lock disappear from the US Magnum 1000 XR scale, try resetting the scale by removing the batteries and waiting a few minutes before reinserting them. You can also try pressing and holding the reset button on the scale for a few seconds to see if that clears the lock symbol. If the issue persists, consult the user manual or contact the manufacturer for further assistance.
How do you change the shape of the pointer?
To change the shape of the pointer in a user interface, you can typically modify the cursor property in CSS for web-based interfaces or adjust the cursor settings in the operating system for desktop applications. You can choose from a variety of built-in cursor shapes or create your custom cursor design.
How does physics affect the development of technology?
Physics provides the fundamental principles that drive technological developments. Understanding physical laws helps engineers design devices and systems, from simple tools to complex machines such as computers and medical equipment. Advances in physics lead to innovations that improve efficiency, performance, and reliability in various technological fields.
How can you photocopy in duplex both pages?
The ability to photocopy in duplex (or both sides of the page at once) is purely dependent on the ability of the copier machine to perform the task. Some machines can do it automatically - those that can't, you'd need to re-insert the 'side one copies' into the feed tray in order for them to accept the copy for the reverse.
How far apart is the microwave tower from the other?
Microwave towers are normally set up in "Line of sight" pattern, as long as the other tower can be clearly seen from the antenna height (both), they work very well. On average they're set roughly about 30 to 40 miles apart depend upon terrain. The old AT&T towers "long line" towers were for sure.
Sugarcane bagasse typically begins to burn at temperatures around 300-350°C (572-662°F). To prevent fire hazard during drying, it's recommended to keep the hot air temperature below this range, ideally around 150-200°C (302-392°F) to safely dry the bagasse without risking combustion.
What is the fastest way to melt ice in a water bottle?
The fastest way to melt ice in a water bottle is to place it in warm water or wrap it in a warm towel. Both methods will transfer heat quickly to the ice, causing it to melt faster. Additionally, shaking the bottle can help distribute the warmer water around the ice, speeding up the melting process.
Disadvantages of portfolio management?
Disadvantages of project portfolio management
- The official PPM may not accurately reflect the organization activity because some of the project my be exclude.
- Below the line project are exclude but they also consume the effort of staff to implement. So that effort will b useless .
(by : uos.ahmed@yahoo.com)
Can Battery shorted by pouring distilled water on it?
Yes, pouring distilled water on a battery can cause it to short circuit. Water is a conductor of electricity, so it can create a path for the current to flow where it shouldn't, leading to a short circuit. This can damage the battery and potentially cause it to overheat or leak.
How much does each backscatter machine used by TSA cost the taxpayers?
The cost of each backscatter machine used by the TSA varies depending on the specific model and features. On average, a backscatter machine can cost anywhere from $150,000 to $200,000.
How long has the x-ray machine been around?
WK Roentgen discovered the X-Ray machine in 1895. Roentgen was a German physicist and a lecturer.
Source: A Presentation I had done.
