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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

Why e.coli is mostly used for the transformation process?

E. coli is best for transformation because its single chromosome contains five million base pairs. It also grows extremely quickly, dividing once about every twenty minutes or so.

Vodopich, Darrell S., and Randy Moore. Biology Laboratory Manual. 8th ed. Boston: McGraw Hill Higher Education, 2008. 171. Print.

What are four causes of a drought in the Caribbean?

Four causes of drought in the Caribbean include irregular rainfall patterns associated with climate change, El Niño events that bring drier conditions, deforestation leading to reduced water retention, and overuse of water resources for agriculture and tourism.

How has technology influenced your ability to study cells?

Technology has greatly enhanced our ability to study cells by providing advanced tools such as microscopes, flow cytometry, and molecular biology techniques. These technologies allow researchers to visualize cells at a higher resolution, analyze cellular components with greater accuracy, and manipulate genetic material to better understand cell function and behavior. Overall, technology has revolutionized the field of cell biology and continues to drive important discoveries in this area.

How does paper selection affect color?

Ink doesn't create its color the way paint does.

Paint is opaque. Light hits the surface of the paint film, the wavelengths of light that don't correspond to the color your thing is are absorbed.

Ink that isn't black is transparent. Really it is. Light passes through it and strikes the paper surface. The paper absorbs certain wavelengths of light. Then the light passes back through the ink film where the wavelengths not needed for the color of ink are absorbed. A cream-color paper will absorb different wavelengths than a blue-white paper.

What are 4 different ways an island forms?

  1. Volcanic activity: Islands can form through volcanic eruptions where magma rises to the surface and solidifies, creating new land.
  2. Coral reef growth: Coral reefs can build up over time, eventually forming islands as coral polyps secrete calcium carbonate skeletons.
  3. Deposition: Sediment carried by rivers or ocean currents can accumulate over time and form islands, such as with delta islands.
  4. Tectonic uplift: Islands can form through tectonic processes where the Earth's crust is uplifted, bringing land above sea level.

What reason the atomic clocks used in global positioning system?

For the simple reason that atomic clocks are highly accurate - usually only gaining or losing one second over thousands of years. High accuracy is vital in GPS systems - otherwise the maps would be out of alignment as you travelled.

As an example - One of the most recent atomic clocks constructed in 2010 is reckoned to only gain or lose less than a second in over a billion years !

What was Robert hooke studying under the miscrope when he gave a new meaning to the word 'cell'?

Robert hooke was lookin at a peice of cork, a thin slice of plant material. He named it a "cell" because the empty spaces reminded him of the cells (rooms) in the monastery he lived in.---Stealth Ninja

What types of technology are used in biology?

I believe microscopes are used, computers help with keeping track of results from experiments, and maybe there is some sort of DNA scanner used in looking at a type of organism? Hope that helps :)

What are opinions on the Amega Wand zero point energy device?

The Amega Wand does not work by any known scientific principles. It is a "metaphysical tool" that is said to work on the principle of zero point energy. But a number of people are buying the device, and some are selling them based on a belief or hope that the device works, or just to try it to find out.

The basic idea that a device without a method of operation that can be described using "standard" scientific terms suggests that the device is a scam. But business is business. If there is a "legitimate" market, there will be sellers. And those sellers might want to make more money by hooking more sellers (the "would-be" sellers) into the chain. Many people would consider this business activity a scam.

Why is fracking bad?

When you first hear the word fracking, you may think that it is a new curse word and a smile appears. However, fracking is scarier when you've discovered the truth. Fracking is a mining or drilling technique, commonly used in oil drilling and natural gas production. It's also called Hydrofracking and Hydraulic fracturing.

Oil and gas companies first buy drilling rights from landowners. Then, they use water-based solutions to force rocks underground to open to allow oil or natural gas to be sucked out and turned into electricity or heat. Fracking puts our health and the environment's in serious risks.

Fracking pollutes the water and air, and is dangerous for the workers and the animals. When landowners suspect that fracking is contaminating their water, a settlement can be made where the landowners can be given money; in return, they will need to promise to not talk to anyone about the problem.

Fracking has taken place in 24 other countries outside of the U.S.

Many of the areas on the Marcellus Shale, an underground rock formation running from parts of northern Kentucky and eastern Ohio through upstate New York is being planned to be the setting of Hydrofracking.

There is a range of health risks that are related to fracking and the other parts of the process, such as the chemicals that are injected deep underground and the toxic compounds that rise to the surface.

Fracking contaminates the water in a very obvious way. Fracking could had been done only using water and clean sand. However to make the job easier and cheaper, the process includes many other 596+ chemicals. Many were harmful and some were unknown.

For example, it includes methane that is also an ingredient of cigarettes. Also, there's diesel fuel, hydrochloric acid, glycol ethers, ........,

Fracking causes air pollution and release lots of greenhouse gas. When fracking is performed, the wells could explode and cause a big spill. The big spill will cause air pollution and water contamination.

As we create more greenhouse gas, more heat will be trapped in our atmosphere. Due to the fact: the temperature of our whole planet will rise, the whole ecosystem will be affected.

Is technology hurting the earth?

Technology itself is not inherently harmful to the earth, but the way it is developed and used can have negative impacts on the environment. The production and disposal of electronic devices can lead to pollution and waste. However, technology also has the potential to help mitigate environmental issues through innovations like renewable energy, smart resource management, and sustainable practices. It ultimately depends on how we choose to utilize and regulate technology to minimize its negative effects on the earth.

Would it be true to say that only mature organisms can reproduce?

No, not all mature organisms can reproduce. Some mature organisms may be sterile or unable to reproduce due to various reasons such as genetic abnormalities, health issues, or being kept in captivity. Reproduction is a complex process that can be influenced by a variety of factors beyond just maturity.

How do pea plants fertilizer naturally?

Pea plants can naturally get key nutrients from the soil, such as nitrogen, phosphorus, and potassium. They also form mutualistic relationships with nitrogen-fixing bacteria in the soil that convert atmospheric nitrogen into a form that the plants can use. Additionally, organic matter in the soil can decompose and release nutrients for the pea plants to absorb.

What is dissymmetry in stereochemistry?

I'm assuming dissymmetry means asymmetry here.

Symmetry in chemistry is a lot like symmetry in mathematics. If a certain molecule is identical to its mirror image, then it is said to be symmetrical.

Asymmetry means the opposite. An asymmetric molecule is not identical to its mirror image.

Our hands are an example of asymmetry. Look at your two hands. You will see that they are mirror images of each other. However, they are not exactly the same. Whereas, the thumb on the left hand is on the right, the thumb on the right hand is on the left.

In chemistry, an example is 1-bromo 1-chloro ethane. If you draw its structure in the tetrahedral shape, you will see that 4 different groups are attached to the second carbon. Now draw its mirror image. Are they the same in 3D? No.

What is the source of energy used by geothermal power plants?

A thorough explanation of the geothermal energy would take a lot of discussion. Briefly; the Earth's core is molten rock (read very hot). The heat rises to the surface in multiple ways. Geothermal power plants make use of this heat (geothermal energy) to generate electrical power.

Why is understanding biogeochemical cycles important to environmental science?

ØAll living things are made of chemical elements.

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ØOf the 103 elements known to man only 24 are needed for life processes which are further divided into:

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Macronutrients: Chemicals needed in large amounts, further divided into the "Big Six", elements that form the fundamental building blocks of life:

Carbon : Basic building block of organic compounds

Hydrogen: Water, Carbohydrates

Nitrogen: Proteins

Oxygen: Water, Carbohydrates

Phosphorus: The 'energy element' occurs in ATP and ADP

Sulfur:

Micronutrients: Includes elements like Calcium, Sodium, Potassium, Metals in trace amounts are needed in enzymes

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What are the importance of the element californium?

The isotope 252Cf is a very strong neutron source; some applications are:

- neutron's detectors for water and petroleum

- control of nuclear fuel rods

- treatment of some cancers by neutron irradiation

- neutron radiography in industry

- neutron activation analysis in mobile installations

What are major gridlines?

Gridlines on a chart indicate values. You will see them on bar charts, column charts and others. Major gridlines show more significant values, like having a major gridline to indicate intervals of 10. So there would be on at 10, one at 20, one at 30 and so on. You can also have minor gridlines which will be thinner and could be at more frequent intervals.

Can electro magnet magnetize and demagnetize soft iron?

Yes, they can magnetise soft iron. Not sure about demagnetising though. I assume that if more than one or two were placed around the soft magnet, it could demagnetise it..

However, the soft iron would need to be 'hit' so that the poles in the iron can allign with the magnetic fields due to the electro magnet.

Which field can not be blank?

Any and all required field(s) cannot be left blank.

Where does mold on leather shoes come from?

Mold on leather shoes usually comes from moisture. When leather shoes are exposed to damp conditions or are not stored properly in a dry, well-ventilated area, it creates an environment where mold can grow and thrive. It's important to keep leather shoes dry and clean to prevent mold growth.

What are countries to have deposits of oil?

Some countries known for having significant deposits of oil include Saudi Arabia, the United States, Russia, Canada, Iraq, and Iran. These countries are major players in the global oil market due to their abundant oil reserves.

Are plastics produced with the help of bacteria?

Yes, some companies are using bacteria to produce biodegradable plastics as an alternative to traditional plastics. These bacteria are genetically engineered to produce polymers that can be used in place of petrochemical plastics.

What is a type of technology that studies the hydrosphere?

Oceanographic technology is used to study the hydrosphere, which includes instruments like buoys, satellites, and research vessels to measure currents, water properties, and marine life. These technologies help scientists understand the dynamics of oceans and their impact on climate patterns and ecosystems.

What is the cost of geothermal technology?

Geothermal technology is very costly. It cost you millions of dollars.

The answer here depends on what aspect/Field of technology you wish to use Geothermal Technology in ... Ill tell you why ... There can be preexisting technology's that would render Geothermal Technology to be cost effective ... In other Fields there may be no existing technology's which would incense the cost of development in new technology's ... The aspect in which you plain to use Geothermal Technology can inflame the cost as well ... If the aspect in which you use this technology is not wildly used the cost to the developer and all investiture can be grate ...