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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
Oil lamps typically produce a dim to moderate amount of light, depending on the type of lamp and the amount of oil used. They are generally not as bright as modern electric lights, but can still provide a cozy and warm ambiance.
How did the Heliograph originate?
The Heliograph was invented by French physicist and inventor Claude Chappe in the late 18th century. It used a system of moving arms and pivots to relay messages over long distances by reflecting sunlight. The Heliograph was used as a form of optical telegraphy before the invention of the electric telegraph.
What was the first animal pair to orbit the earth?
Belka and Strelka were the first animal pair to orbit the Earth. They were two dogs that were launched into space aboard the Soviet spacecraft Sputnik 5 on August 19, 1960, and safely returned to Earth.
What family does acrylic belong to?
Depends on what you mean by family acrylic is a plastic which is flexible as it can be moulded in to nearly every shape. It is made out of oil which is a fossil fuel.
Sorry if I couldn't help with your question.
The lunar rocket refers to a spacecraft specifically designed to transport astronauts and equipment to the Moon. Examples include NASA's Saturn V rocket used during the Apollo missions and SpaceX's Starship, which is being developed for future crewed missions to the Moon.
How has blue mountains changed over time?
The Blue Mountains have experienced changes over time due to urban development, climate change, and human activity. Deforestation, increasing temperatures, and tourism have had impacts on the ecosystem and wildlife in the region. Conservation efforts are being made to preserve the natural beauty and biodiversity of the Blue Mountains for future generations.
Why is it important to track NEO's?
Tracking Near-Earth Objects (NEOs) is important because they have the potential to impact Earth and cause significant damage. By monitoring NEOs, scientists can predict potential collisions and take measures to mitigate the impact, potentially saving lives and minimizing destruction. Tracking NEOs also provides valuable information about the composition and distribution of objects in our solar system.
A cos meter is a device used to measure the power factor in an electrical circuit. It measures the phase difference between the voltage and current in an alternating current system, helping to assess the efficiency of power usage. A power factor close to 1 indicates efficient power usage, while lower values suggest energy wastage.
Would solar panels generate more power at a higher altitude?
Not necessarily. Solar panels generate electricity based on the amount of sunlight they receive, not their elevation. However, at higher altitudes, there may be less atmospheric interference which could potentially result in slightly increased efficiency in some cases.
What are some technological devices and tools used in space?
Some technological devices and tools used in space include spacecraft, such as satellites and rockets, space probes, telescopes, spacesuits, and robotic rovers for planetary exploration. These tools help scientists and astronauts study and navigate space, gather data, communicate, and explore celestial bodies in our universe.
A geodesic dome is a spherical shape generally created using small triangles strategically places to make a round shape. One example of a geodesic dome is the Epcot Center in Disney World. They also have play grounds for children that are half spheres made from the triangles mentioned above that would technically qualify as a geodesic dome.
What is the past tense of some stars appear to be brighter than others?
'Appear' would become 'appeared' in the past tense so the sentence would simply be 'some stars appeared to be brighter than others'.
Where and when did the counterweight trebuchet first apper?
The Trebuchet first appeared in china in about the 4th century BC
Is the eiffle tower lit every night?
Yes, the Eiffel Tower is lit every night with thousands of sparkling lights that shimmer for 5 minutes every hour on the hour after dark until 1 a.m. Paris time.
What is a light paper that can be folded and sent by air called?
There is a special lightweight kind of paper called onionskin, that used to be popular for sending airmail because the cost per ounce of sending airmail was very high. However, at the present time it is so easy to send messages by email that there isn't a lot of demand for onionskin anymore.
What layer of space is the International Space Station in?
The International Space Station (ISS), which orbits at between 187 and 194 nautical miles (about 215 to about 223 miles), is in what is called the thermosphere. We know that this layer, which is above the mesosphere and below the exosphere, extends from about 100 kilometers (a bit over 60 miles) to 690 kilometers (a little less than 430 miles) above the surface of the earth. Links can be found below for confirmation and for additional data.
How does an automatic lighthouse work?
Well First there is a timer, or if the light house doesn't have a timer then somewhere there is a base that can use a ( wireless or wired ) frequency to atomaticly turn it on it very simple if you think about it.
What effect does the wind have on the way you launch the rocket?
The wind can affect the stability and trajectory of the rocket during launch. Strong winds can cause the rocket to veer off course or tilt in flight, potentially leading to a failed launch or unsafe landing. It is important to consider wind speed and direction before launching a rocket to ensure a successful and safe flight.
What percent of California power is made by solar panels?
A decade ago, only 500 rooftops in California boasted solar panels that harvest the sun's energy. Today, there are nearly 50,000 solar-panel installations in the state, according to a report to be issued Thursday by the research and lobbying group Environment California.
MultimediaGraphic Harvesting SunshineAs a result, California, the longtime national leader in solar energy, has a capacity of more than 500 megawatts of solar power at peak periods in the early afternoon --- the same as a major power plant.
The solar capacity in California grew by a third from 2007 to 2008. It now represents about two-thirds of the national total, according to a different report that is being prepared by the Interstate Renewable Energy Council, a nonprofit group promoting expansion of solar energy.
As the Obama administration pushes for a national shift to more renewable energy sources, California's example is therefore being closely watched. Nationally, the states in which solar installations are spreading fastest are those that provide the most generous subsidies for them, industry experts agree.
Two long-term statewide programs in California provide rebates and other financial incentives to encourage rooftop solar panels, and individual municipalities like Berkeley are also beginning to offer financing for the solar arrays.
"The thing about California is that they have a consistent program that has 10 years of funding," said Larry Sherwood, a consultant to the interstate council.
(The California budget cuts that were being brokered Wednesday will not directly affect the subsidies because the subsidies are underwritten by utility ratepayers, not taxpayers.)
New Jersey is a distant second to California in installed solar capacity with 70 megawatts, followed by Colorado and Nevada, the council's report said.
The Clean Energy program in New Jersey offers qualifying residential and commercial customers rebates for energy generated by solar arrays.
"Typically, New Jersey incentives have been higher, but its program has had many fits and starts," Mr. Sherwood said.
Within California, solar technology has spread beyond highly environmentally conscious areas like San Francisco and Sacramento over the last decade to gain a hold throughout the state, Environment California's report indicates. As of the end of 2008, when the report's figures were compiled, San Diego had more than 19 megawatts in capacity from installations on 2,200 roofs, followed by San Jose with 15.4 megawatts from 1,330 roofs and Fresno with 14.5 megawatts from 1,028 roofs.
"The biggest thing here," said Bernadette Del Chiaro, the report's author, "is that from farms to firehouses, the face of solar power is changing. While California's biggest cities have led the way, the rest of the state and country are quickly picking up on it."
She added that the cities of the Central Valley, which is both heavily agricultural and baking hot in the summer, are natural places for the solar panels. High air-conditioning loads and high peak electricity rates tend to dovetail partly with the afternoon hours when solar panels are most effective, she noted, giving people an incentive to embrace the new technology.
Nationally, residential installations account for about a third of the energy supplied to the power grid by photovoltaic arrays on panels; the remainder come from installations on larger facilities, like government buildings, retail stores and military installations.
Each of the four top-ranked cities in California in terms of solar power capacity have more electricity available from these sources than all but six states.
Still, 10 states, led by Colorado and including Hawaii, Connecticut, Oregon, Arizona, North Carolina, Pennsylvania and Massachusetts more than doubled their rooftop solar capacity in 2008, Mr. Sherwood said.
While most installations are on rooftops, the number of larger-scale installations is increasing. Fresno's total output is augmented by a 2.4-megawatt facility at the Fresno Yosemite International airport, while the local Sierra Nevada brewery in Chico has a 1.9-megawatt solar array.
Outside the state, Nellis Air Force Base in Nevada has the largest photovoltaic generating plant, with 70,000 panels generating 14 megawatts of electricity, according to the federal Energy Information Administration.
But even with the increases of the last decade, solar power is a pipsqueak among energy sources; it represents about one-quarter of 1 percent of California's total energy capacity, according to the California Energy Commission. Nationally, according to the Energy Information Administration, it represents about 0.02 percent of total capacity, but those federal figures are incomplete: they reflect only centralized facilities, not distributed rooftop installations.
Cost is a major hurdle; installation of a rooftop system is likely to cost at least $20,000.
In other countries, according to the Renewable Energy Policy Network for the 21st Century, a research and advocacy group, government subsidies have led to rapid growth in solar power. The group's latest report shows Germany as the world leader in solar power, with 5,400 megawatts, or about 1 percent of the country's total generating capacity.
What were the first technological advancement that continue to lead to the advancement to flight?
Some of the first technological advancements that led to the advancement of flight included the study of aerodynamics by scientists like Sir George Cayley in the 19th century, the development of lightweight materials such as aluminum and composite materials for aircraft construction, and the invention of the internal combustion engine which powered early aircraft like the Wright brothers' Flyer.
Which data storage can hold the largest amount of data?
Currently, cloud storage services like Amazon S3, Google Cloud Storage, and Microsoft Azure Blob Storage offer the capability to store vast amounts of data, with the potential for petabytes or even exabytes of storage space. These services can scale dynamically to meet increasing storage demands and provide high levels of durability and reliability for large datasets.
What is the nearest star to the earth next to the sun?
Proxima Centauri is the closest star to our sun. It's a red dwarf, and is not visible to the naked eye.
Who made the Apollo 11 spaceship?
NASA and several contractors, but the design was by the German rocket engineer Wernher von Braun
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Well if you are referring to a 750 mb CD then it just depends on how big the information you are trying to copy onto the CD. They average song is around 4 minutes and its about 4mb so you could have about 3 hours of music.
