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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 possible sources of errors in the different methods used in creatinine?
Possible sources of errors in creatinine measurements can include improper sample handling, interference from substances like bilirubin or glucose, calibration issues with equipment, variations in hydration status of the individual being tested, and errors in calculation or recording of results. It's important to follow proper procedures and quality control measures to minimize these potential errors.
How did clocks improve technology?
Clocks played a key role in improving technology by providing a standardized way to measure time, which was essential for coordinating activities and establishing schedules. This led to advancements in various fields such as navigation, transportation, and industry, as people could now accurately track time and synchronize their actions with others. Furthermore, the development of more accurate and precise timekeeping devices, such as pendulum clocks and later atomic clocks, laid the foundation for the modern era of precise timekeeping and communication technology.
How much does it cost to run an average size computer for 8 hours?
It is difficult to specify an average without sound statistical data, but you can make a few reasonable assumptions, resulting in a usable estimate. First, a little background:
Any electrical unit consumes electrical power, measured in watt (W). Consume electrical power over time means to 'consume' electrical energy; for example, burn a 100W light bulb for one hour 'consumes' 100Wh, or 0.1kWh, electrical energy. It is the number of kWh that you pay to your electricity supplier; for example, one electricity supplier in the UK charges £0.1152 per kWh.
(I write consume in quotes because it is not really possible to consume energy. According to the first and second law of thermodynamics, energy is only ever converted, but never consumed. The light bulb, for example, converts electrical energy into light and heat.)
Back to the computer.
An average desktop computer is designed to 'consume' up to 250W, but in normal-to-light use, it will consume no more than than 100W. When left to idle, modern computers switch off a number of non-essential units, leading to even lower power consumption (50W?).
Laptop computers will typically consume around 50% of a desktop PC's power consumption.
A CRT monitor will consume 150..250W, depending on its size, whether the computer is idle or not. However, most modern systems are configured to turn-off parts of the monitor in order to reduce the power consumption. This will reduce power to a value in the region of 30W.
Modern LCD displays will consume approximately 50% of the power of a CRT.
Other components, such as keyboards, mice, etc, are negligible.
So, assume your PC is a desktop PC, in use for 3 hours with typical applications, and idle (or in very low and sporadic use) for the other 5 hours:
PC energy = 3h * 100W + 5h * 50W = 300Wh + 250Wh = 550Wh
The display will have similar on/off times, so assume this:
LCD energy = 3h * 80W + 5h * 35W = 240Wh + 175Wh = 415 Wh
Total energy = PC energy + LCD energy = 550Wh + 415Wh = 965Wh (approximately 1 kWh).
So, running this PC for eight hours consumes approximately 1 kWh electrical energy, costing as little as £0.1152 in the above example. While this seems inexpensive, note that this builds up to 24/8 * 365 * £0.1152 = £126 per year.
You might use these figures for an initial estimation, but you must note that the true cost (i.e. the true power consumption) very much depends on make and model, and how you use this PC. Light word processing consumes little power in comparison with an action-packed video game, burning a DVD, or some serious number-crunching.
For a more accurate estimate, you would need to gather statistical data and review the above.
What are two environmental factors that can change the shape of an enzyme?
Everything from the weather to the temperature of a room, it all effects how your body releases the enzymes to make your body warmer or cooler or hard or softer. They are minute subtle changes but its enough to somewhat shield you from extreme conditions.
^^^ WHAT THE HECK ARE U TALKING ABOUT??! crazy dipsh*t... ok so environmental factors that affect enzyme activity are typically PH (level of acidity), temperature, heat, and concentration of substrate (substance that an enzyme works on)... PH and temperature at a convenient level for the enzyme tend to increase the activity, but at an extreme level can denature them (they unfold and become useless). Heat at higher levels also tends to denature them, and the concentration of a substrate at a high level increases activity and at a low level decreases activity.
btw, the person who wrote the first answer is very annoying and does not know what the f**k they are talking about :)
How would i compare myself to a clock?
Just like a clock, you have various parts (qualities, skills, experiences) that work together to make you function effectively. Both you and a clock have the capacity to be reliable, handle tasks efficiently, and make a positive impact on those around you. Just as a clock serves a purpose in telling time, you also have a unique role or purpose in the world.
What is meant by technology of regressive force?
"Technology of regressive force" refers to the use of technological advancements for harmful or regressive purposes, such as for the oppression or suppression of certain groups or for destructive ends. It implies a negative or backward-facing use of technology that goes against progress or social advancement.
Why polyester clothes should be avoided in kitchen?
Polyester is a synthetic material that can melt, catch fire, or produce toxic fumes when exposed to high heat, making it unsafe to wear in the kitchen where there is a risk of coming into contact with flames or hot surfaces. Polyester clothing also tends to trap heat and moisture close to the skin, making it uncomfortable to wear in a hot and humid kitchen environment. Additionally, polyester is not as breathable or absorbent as natural fibers, which can lead to increased sweating and discomfort while working in the kitchen.
What is introduction for anions in aqueous solutions?
Anions in aqueous solutions are negatively charged ions that can interact with cations to form ionic compounds. They play a crucial role in chemical reactions, electrolysis, and the overall behavior of solutions. Anions can also participate in redox reactions and can influence the pH of a solution.
Epekto ng el nino sa agrikultura?
Ang El Niño ay nagdudulot ng matinding tagtuyot sa iba't ibang bahagi ng mundo, na maaaring magdulot ng pagkasira sa pananim at kakulangan ng suplay ng tubig para sa irigasyon. Ito ay maaaring magresulta sa pagbaba ng ani at pagtaas ng presyo ng pagkain, na maaring makaapekto sa kita ng mga magsasaka at seguridad sa pagkain ng bansa.
What the property of metals to be drawn out into thin wires called?
The property of metals to be drawn out into thin wires is called ductility. This allows metals to be stretched into wire or other thin forms without breaking.
Is the chocolate is heterogeneous or homogeneous?
Chocolate is considered heterogeneous because it is a mixture of different ingredients, such as cocoa solids, sugar, milk solids, and sometimes additional flavorings or emulsifiers, which are not evenly distributed throughout the chocolate.
A pen uses the science of capillary action, where ink is drawn upward through a narrow tube by surface tension and adhesive forces. The ink is then released onto the paper through the ballpoint or nib, creating smooth lines. Additionally, the mechanical design of the pen, such as the spring-loaded mechanism in a click pen, also involves principles of physics.
How do you write a cover letter for a polymer chemist?
To write a cover letter for a polymer chemist position, highlight your experience in polymer chemistry, including any research, projects, or achievements. Mention specific skills such as organic synthesis, polymer characterization, and materials testing. Tailor your cover letter to showcase how your background and skills align with the requirements of the job you are applying for.
What is the Meaning of latency in performance testing?
Latency in performance testing refers to the time delay between when a request is sent to a system and when a response is received. It is an important metric to measure as it can impact the overall performance and user experience of an application. High latency can indicate bottlenecks or issues within the system that need to be addressed.
How do you detect an occupant in a room to use electricity efficintly?
The easiest way is to use a Passive Infra-Red (PIR) sensor, like they use on "movment-sensitive" alarms and outdoor lights.
Check your local electrical supply store - they've been available here in Australia for some years.
Will increasing voltage through cell phone install or delete apps in it?
Increasing voltage to a cell phone will not directly install or delete apps. Voltage controls the power supply to the device, affecting its performance and potentially damaging it if too high. Apps are managed through software settings and installation process, not by changing voltage.
What is the weight of 10 mm aggregate in 1 cubic meter?
The weight of 10mm aggregate in 1 cubic meter depends on the density of the aggregate. On average, the density of 10mm aggregate is around 1.4 to 1.6 tonnes per cubic meter. So, the weight would be between 1,400 to 1,600 kg.
What is radiation detected with?
Radiation is detected using instruments such as Geiger-Muller counters, scintillation detectors, and ionization chambers. These instruments are designed to measure the levels of radioactivity in a given area or object.
What direction is a force exerted on the wire?
The direction of the force on a wire is perpendicular to the direction of the current flowing through the wire and to the direction of the magnetic field in which the wire is placed. This is described by the right-hand rule for magnetic fields.
What are the Characteristics of a sensor?
Sensors are devices that measure physical quantities and convert them into a signal that can be interpreted. They typically possess sensitivity, accuracy, resolution, and response time characteristics. Additionally, sensors may exhibit linearity, hysteresis, and repeatability in their measurements.
What is the American name for polystyrene?
It is usually referred by its genericized (but still legally protected by intellectual property law) name Styrofoam. The trademark is owned by Dow Chemical Company.
How air get converted into liqid form by compressing?
You can't convert air into liquid simply by compressing it.As far as I know, all gases can be compressed until they become liquid, but gases also have a critical temperature, above which you can't compress it, no matter how high the pressure. For air, this critical temperature is way below the environmental temperature.
So, to get air liquid, mainly you must get it very, very cold. Some pressure can help too, though.
Should you lie on the ground in an active shooter situation?
In an active shooter situation, the best course of action is to find a safe place to hide, try to remain calm, and silence your phone. If you are unable to escape and must hide, lying on the ground may be a viable option depending on your proximity to the shooter and availability of adequate cover. It is important to assess the situation in real-time and follow the instructions of law enforcement if they are present.
What will happen when we shout into the canyon if some one is standing on the canyon?
If someone is standing in the canyon while you shout, the sound waves will bounce off the canyon walls and create an echo. The person in the canyon will hear the original shout followed by the echo, which can create a cool and amplified sound experience.
