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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 technology has come from space travel?
To name a few industries or technologies that exist or were improved due to space exploration: LEDs, infrared ear thermometers, ventricular assist devices, artificial limb technology, invisible braces, scrath-resistent lenses, space blankets, aircraft anti-ice systems, radia tire technology, chemical detection technology, video enhancing and analysis technolgy, fire resistence technology, firefighting equipment, temper foam, baby food technolgy, freeze-drying technology, water purification, solar cell technology, pollution remediation technology, lots of computer technolgy, etc.
Space exploration is good for the human race.
How do you use density to identify an unknown object?
To identify an unknown object using density, you can measure its mass and volume. Then, calculate the density by dividing the mass by the volume. Compare the calculated density to known densities of different materials to determine the identity of the object.
Daleks are (possibly the most familiar) antagonists in the British sci-fi series, Doctor Who.
They are Kaled mutants operating within individual mobile weapons platforms constructed from dalekanium (super-strong alloys with polycarbides). The Kaleds originated on the planet Skaro as great philosophers and scientist who were waged war upon by their planetary companions, the war-like Thals. Generations of bitter and increasingly vicious warfare ensued between Thals and the Kaleds on Skaro (the Thousand Year War).
The Thals succeeded in quashing the Kaleds and settled down to a more peaceful existence, but this did not last for more than a few centuries before hostilities returned. While technologically well-matched, the Kaleds focused on surviving the wrath of the Thals while the Thals focused on utterly destroying the Kaleds, resulting in a tactical stalemate as the Thals designed horrifyingly destructive weapons, but were unable to overcome the Kaled's defences- neither side was capable of achieving victory. Both races ultimately rendered their planet a wasteland, surveying all they had wrought from the protection of their domed cities.
The environment had been poisoned with high levels of radiation (to which the Thals were greatly more resistant). The Kaleds suffered progressive mutations until their withered bodies struggled to sustain them. They developed self-contained life-support and transportation units to move around in according to the design of the crippled and twisted chief Kaled scientist, Davros, whose demented machinations (including the further corruption of the Kaled genetic constitution) lead him to become the progenitor of the Daleks as they are now known- combining his genetically-engineered mutants with weaponised 'travel machines' based upon his own mobility device.
Davros eventually betrayed the Kaleds by providing information that would allow the Thal to penetrate Kaled defences. When the Thals destroyed a Kaled city, Davros used this new and horrifying threat as reason to unleash his Daleks- the ultimate weapons. Despite a few obstructions and hiccups caused by interference from early incarnations of The Doctor, the Daleks rose to found a vast inter-galactic empire, ultimately waging war upon the Timelords themselves.
The Dalek catchphrase is "EXTERMINATE!" Their voices (loud, modulated machine-like monotones) are far from pleasant, and help to enhance their rather unfriendly countenance, especially when barking their catchphrase as a ice-breaker when meeting (read: conquering) new species..
Outwardly, Daleks are mobile weapons platforms, standing as tall as (or taller than) a human, with a domed 'head' from which a rod-like eye-stalk projects terminating in a spherical 'eyeball' containing their visual sensory equipment, and usually a light either side that illuminates when the Dalek 'speaks'. The front mid-section of the Dalek hosts (usually) two appendages; conventionally a dis-integrator ray (a formidable energy weapon which produces a distinctive sound when fired) and a telescopic, multi-role, plunger-like manipulator device. There are some historical variations upon the design, including Daleks with clamps/grippers or tools in place of their manipulator appendage, heavy-weapons Daleks with large-bore weapons and heavier armour, and command/coordinator Daleks with large, spherical modules in place of the dome.
The lower portion of the Dalek chassis, the 'skirt', is embedded with a number of metallic spheres which are presumed to form part of a sensor array, though these have been seen to detach in one Dalek self-destruct sequence, hovering in formation around the Dalek and generating a bubble field around the Dalek prior to its disintegration. Daleks can generate a localised shield which protects them almost completely from all kinetic and most energy weapons, though their armour is impenetrable to most conventional weapons anyway.
Daleks have a hierarchy whose ranks are denoted by various colour schemes and small size/design variations. Despite their unshakeable belief in their own superiority as the Universe's master race, civil wars, racial differentiation (through further genetic manipulation), and even theological differences have led to various splits in their factions; Daleks, it would appear, are not above exterminating each other once in a while. In fact, it is not entirely uncommon for Daleks to exterminate inferiors who fail to meet performance targets.
Initially thought to achieve locomotion via a spherical, uni-directional bearing upon which the entire chassis is mounted and requiring metallic paths and/or distributed energy fields to provide power, it has since been revealed that Daleks now actually hover just above the ground, and are able to effectively fly when required. They have also been seen emerging from complete submersion in water and operating in space without difficulty.
The creature inside the machine shares little in appearance with its humanoid Kaled ancestors. Whereas Davros was roughly humanoid, though horribly disfigured and partially integrated with his own mobility system, Daleks seen outside of their protective war machines are not even remotely humanoid. Their current form is reminiscent of an octopus, with a number of tentacle-like appendages, vestigial facial features, an exposed brain, and a single large eye. They are not to be underestimated in this vulnerable condition, however, as they are as hateful and violent even without their weapons, and possess the strength to kill a target via strangulation. Earlier depictions of Kaled mutants have included green blobs with tentacles, and even crab-like mutations with claws.
Their most reviled enemy is the renegade Timelord known as The Doctor, who has repeatedly thwarted their evil, xenophobic plans. They covet the technology of the Timelords, and strive to similarly master space and time, if only to conquer it utterly; they have enjoyed some success with their own endeavours, but nothing so sophisticated or advanced as Timelord Tardis technology. The Doctor's Tardis, an obsolete model that was retired from service long before The Doctor stole it, is possibly the last known in the Universe (just as The Doctor is possibly the last living Timelord) as a result of the Time Wars which resulted in near-absolute destruction of both Dalek and Timelord races thanks to a final solution employed by The Doctor himself ("near", as the odd Timelord or lost Dalek warship still crawls out of the woodwork to stir things up once in a while); for this reason, obtaining it would be a great prize for any remaining Daleks, and could spell the beginning of a new Dalek age... and a brutal end for all life everywhere, everywhen!
Terry Nation created the concept of a Dalek, telling the press that the 'Dalek' name originated from spines of encyclopaedias, and 'simply rolled off the typewriter'.
Which of thee following is not a technology that helps us know what the ocean floor is like?
A bicycle is not a technology that helps us know what the ocean floor is like. Sonar, bathymetry, and remote-operated vehicles are technologies commonly used for mapping the ocean floor.
What is the best climate to harvest wheat?
Wheat is typically grown in temperate climates with moderate rainfall and cool temperatures during the growing season. Ideal conditions for wheat harvesting include dry and sunny weather, which helps with drying out the crop and preventing mold growth. Additionally, a short period of rain-free weather during harvest time is crucial to ensure the quality of the grain.
How did ceramic technology affect mines land?
Ceramic technology improved the efficiency of mining operations by enabling the development of tools such as ceramic knives, drills, and liners that could withstand harsh mining conditions. It also facilitated the creation of ceramic-coated materials for environmental protection and reduced erosion from mining activities, enhancing land reclamation efforts. Additionally, ceramics helped in the storage and transportation of minerals, reducing wastage and environmental impact on mined land.
What forms of technology are scientists using to study El Ni?
Scientists use a variety of technologies to study El Niño, including satellites to monitor sea surface temperatures, buoys to measure ocean currents, and computer models to simulate and forecast its behavior. Remote sensing instruments are also used to gather information on atmospheric conditions and precipitation patterns associated with El Niño events.
What technology involves in making large layered maps?
Large layered maps are typically created using Geographic Information Systems (GIS) technology, which allows for the analysis, visualization, and manipulation of geographic data. GIS software enables the integration of various layers of spatial information, such as satellite imagery, demographics, and infrastructure, to create comprehensive and detailed maps for purposes like urban planning, environmental management, and disaster response.
Why did DNA and technology lead to more use cladistics?
DNA and technology made it easier to analyze genetic data and compare it across different species. This led to the development of cladistics, a method for establishing relationships between organisms based on shared characteristics and evolutionary history inferred from DNA sequences. Cladistics became more widely used due to its ability to provide more accurate and detailed insights into evolutionary relationships.
What is the difference between a probe a satellite and a rover?
A probe is a spacecraft designed to explore and gather information about a celestial body, typically by orbiting it or flying by it. A satellite is an object that orbits a larger body, such as a planet or a moon. A rover is a vehicle that is designed to move on the surface of a celestial body to explore it up close.
The development of the microscope allowed scientists to observe and study the microscopic world, leading to advancements in various scientific fields such as biology, medicine, and chemistry. This enabled researchers to make new discoveries, understand complex structures at a cellular level, and further expand their knowledge of the natural world.
Environmental scientists use GPS collars and satellite tracking devices to monitor the movement of polar bears and other vulnerable populations. These devices provide real-time data on the animals' location, habitat use, and behavior, allowing scientists to study their movements and assess threats to their survival. Additionally, aerial surveys and drones are also used to track and monitor these populations from a distance.
What kind of biologist would study satellite technology?
A biologist specializing in remote sensing or ecological modeling would study satellite technology to analyze ecosystems and habitats from space using satellite imagery. This line of research helps monitor environmental changes and track wildlife populations.
Is it salt or fresh water in the Gulf of Mexico?
The Gulf of Mexico contains mostly saltwater. This is because of the high salinity levels in the ocean water due to the presence of dissolved salts from the Earth's crust.
A series of two or more adjacent cells in a column or row in an Excel spreadsheet is called a range. It can also refer to a rectangular group of cells selected together in the spreadsheet. Ranges allow you to perform calculations, formatting, and other operations efficiently on multiple cells at once.
How has technology helped biologists gain a better understanding of life?
Technology has enabled biologists to study life at various levels, from the molecular to the ecological, by providing tools like DNA sequencing, advanced imaging techniques, and computational modeling. These tools have allowed for faster and more in-depth analysis of biological processes, leading to advancements in fields such as genetics, ecology, and microbiology. Additionally, technology has facilitated data sharing and collaboration among researchers globally, accelerating the pace of scientific discovery in biology.
Is a cartoon non living or living?
A cartoon is a non-living representation of a character or scene created by an artist through drawn or computer-generated images. It exists as a visual representation within a medium such as a TV screen, paper, or digital device but does not possess life or consciousness.
What is a group of clones called?
A group of clones is typically referred to as a "clone army" or simply a "group of clones."
How can you select cells that are not next to each other in excel?
To select non-adjacent cells in Excel, hold down the "Ctrl" key on your keyboard while clicking on the individual cells you want to select. This will allow you to select cells that are not next to each other within a worksheet.
What is the purpose of the planetary gears?
A set of gears provides a method to change the torque from a rotating object, such as the output shaft of a motor or engine, and either reduce the rate of rotation in exchange for an increase in torque (geared down), or increase the rate of rotation in exchange for a decrease in torque (geared up).
This is useful for a number of reasons. First of all many motors when hooked up to an electrical power source rotate at a very high speed and the desired rate of rotation is usually lower so the output from the motor is geared down. Secondly, motors are most efficient usually at a certain rate of rotation around 20% or so of the free speed (motor's output shaft rate of rotation with no load), and motors provide the most power at 50% of free speed. Using gears can help to achieve max power or max efficiency.
What uses technology to replace one or more genes in an organism?
Genetic engineering uses technology to replace one or more genes in an organism. This process involves altering the genetic material of an organism by introducing foreign DNA to achieve desired traits or characteristics. The most common method used is gene editing techniques such as CRISPR-Cas9.
Inside a firefly, you would find a complex circulatory system with blood called hemolymph, a respiratory system that includes tubes called tracheae for breathing, and a digestive system for processing food. Additionally, fireflies have light-producing organs called lanterns that contain luciferase enzymes to create bioluminescence.
Why did DNA technology lead to more use of cladisrics?
DNA technology provided a more accurate and objective way to group organisms based on their genetic similarities, leading to the development of cladistics. This method enables scientists to create evolutionary relationships and classifications that are more reflective of true genetic relatedness among organisms, compared to traditional methods based on morphology or behavior.
What is a negative consequence in using DNA technology in forensics?
A negative consequence of using DNA technology in forensics is the potential for misinterpretation or mishandling of evidence, leading to false incrimination or exoneration of individuals. Additionally, concerns about privacy and the potential for misuse of genetic information are valid considerations.
Modern technologies like satellite imaging and LiDAR (Light Detection and Ranging) have significantly improved the precision with which scientists can measure Earth's landforms and other features. These technologies allow for high-resolution mapping and 3D modeling of the Earth's surface, providing detailed and accurate data for scientific research and analysis.
