Water monitors

Water monitors

To have clean drinking water for granted when most of the people and most of the water used for drinking and household chores comes from groundwater, so it ensures that these resources remain valid for drinking and household use.

 

Hydrogeological: (water specialists) is called the world groundwater, who is responsible for finding sources of groundwater, and monitor and ensure the supply of pure and free from contamination, and to ensure that their use at rates less than compensated with new water. How can seem an ideal business day of hydrogeological working days? This can spend the day in the field to conduct tests on water levels, and the next day in the evaluation of the data, then the next in the search to the problem of water supply to one of the houses.

Vaccination against smallpox

Vaccination against smallpox
 

Spread smallpox virus rapidly among people and can kill 30% of people living with, and since it is a killer disease has discussed the governments for several years possibility of requiring people vaccinated against him, and is the smallpox disease, an incurable and is caused by a type of virus, although it has the world Edward Jenner in 1796 the development of smallpox vaccination, and vaccination has helped to save the lives of many people through the prevention of the disease.

Lasting immunity resulting from vaccination of three to five years, and prevents the vaccination of infection or reduce the effects if given vaccination within a few days after exposure to infection, and if the spread of the virus smallpox, the control centers of the disease and its prevention must provide people who may be exposed to the virus vaccination within three days to minimize the effects of the disease or to prevent it, and in the case of the spread of this disease, it is enough vaccine available for everyone.

If smallpox fatal to such a degree, why not everyone be vaccinated on a regular basis? The vaccination compulsory no longer an option because of the suffering that will be experienced by many people from the effects of vaccination, for example, suffers% of the population, at least from the inhibition of the immune system as a result drugs or disease, and that they receive the vaccination smallpox may result in serious complications because of their weakened immune system.

Echinoderms and medical research

Echinoderms and medical research

Connective tissue: A graduate student in biology huge capacity of sea cucumber to increase the size of his body and then shrink back to its normal size, how sea cucumber can change the size of his body? All this is due to a connective tissue which tissue that connects the organ tissues in the body, supported and surrounded by.

There is a similarity between the connective tissue of the sea cucumber and connective tissue in humans; as containing fibers of connective tissue protein called collagen, and collagen in the human component fixed in the tissue, the researcher found Zolgt and other researchers that the collagen in the connective tissue of echinoderms is fixed, sliding forward and backward , when it is made up of protein molecules in the internal structure of sliding over each other, and the sea cucumber body is soft and flexible. The cells can secretion of sea cucumber proves collagen and prevent it from sliding and this gives the hardness of the internal structure, and it is not mobile.

Artificial Intelligence

Artificial Intelligence

Used the term artificial intelligence for the first time in 1955, and is known as "the scientific understanding of the mechanisms of thinking implicit and intelligent behavior and included in the Machine," it argues important sometimes to the artificial intelligence in order to be very logical, and sometimes you need to artificial intelligence to think and act according to the wishes of Rights, It aims to develop artificial intelligence systems that can perform logical functions and act according to the wishes of the rights together.

Applications: artificial intelligence is used in many fields, and will have a greater importance in the future, when the computer plays the game of chess, it looks for hundreds of thousands of potential movements before it selects the best movement.

Uses artificial intelligence is to know the sound; so allows communication using mobile phones without the use of hands, and the completion of the transactions over the phone interactive, but they are not quite able yet to understand the language that addresses the device fully and accurately, but that in itself is a target in future.

Sound waves from the sun

Sound waves from the sun

Study is called vibration waves in the sun with (seismological solar) "science of earthquakes Sun”, where the following waves occur naturally in the sun: the sound waves (p waves), and gravitational waves, and surface gravity waves. It consists of all these waves of vibrating molecules, although these vibrations caused different forces.

The pressure differences caused vibration of the molecules in the sound waves, but in the sun this will take sound waves through the convection zone, which lies just below the surface (photosphere), is not transmitted sound waves in a straight line.

Cause sound waves in the sun surface vibration in the direction of the country, such as the vibration knocks bell, when the bell knocks hammer hitting the bell at one place, and produces waves Suspended. And the surface of the sun waves suspended, although it has not produced for the event and a great one. Scientists assumed instead that many small obstacles in the area of ​​convection began, including most of the sound waves in the sun, such as the sounds of boiling water in a pot, but the size of the bubble formed at the surface of the sun is greater than the whole area of ​​Saudi Arabia, and issued by the sound waves.

The evolution of lighting

The evolution of lighting

History log the use of oil and candles and gas to provide lighting at night, there was always the risk inherent in the use of open flame for light, came the invention of the electric power in the nineteenth century, it has provided us with a light brighter, as improved means of security and public safety for the people.

And incandescent bulbs are the traditional form of electric lighting so far, where the heats of tungsten metal filament electricity even glow in yellow. And tungsten does not burn but evaporates, resulting in damage to the tungsten filament, so you will not be getting it very effective light; due to evaporation. This has happened in the development of electric lighting sources for the production of lighting a longer lifetime and less heat production.

Lamps quartz (halogen): To protect priming Tungsten damage makes the lamp very young and full of gas, bromine or iodine, which combine ions tungsten in Wick molecules of gas in space cold of the lamp to form a composite spins through the lamp and unite again with this Wick, and the light output a bright yellow color, but it generates high temperatures lead to melting glass lamp normal, so it uses a fused quartz which has a high melting point.

Discovered the useful fungi

Discovered the useful fungi

You might have heard the story of the antibiotic - penicillin - which was discovered in the course of World War II, when she found a farm bacterial infected with fungus, had been prepared for the study in laboratory, and it marked the opening of major scientific, So the fungi have significant role also in the fight against human cancer, it is expected to be represented by fungi in the rainforests knock-on this dangerous disease. It's interesting that scientists their studies ice body of a man discovered in 1991 indicate that helped him to resist fungus creature arty neighborhood.

Fungi Stone Age: ice man gives a clear picture of what life in the Stone Age 5,000 years ago. It was found in his belt two pieces of walnut-sized later discovered she wooden fungi, this fungus is known in Russia as a wooden medical treatment , The fungus causes diarrhea for humans and uses an antibiotic. The fungus has helped wooden man on the ice mitigate the impact of parasites that were living in the colon in the body; they found the body of parasitic eggs.

Genetically modified plants

Genetically modified plants

Have you ever dealt with corn flakes and orange juice or toast in your breakfast? If you've bought from the shop they often foods and genetically modified foods.  
We amended man in the centuries-old recipes plants by selective hybridization, scientists were unable to modify the genetic storage plants only recently.

 What genetically modified plants? Genetic engineering before knowing there was a hybridization election, if infected mold corn crop, for example, the farmer selects seeds from plants that did not show the injury. If the farmer continues to elect the seeds from the plants did not suffer mushroom consists .We have a strain of fungi-resistant plants over time.

Scientists in recent years from the transfer of genes between species of plants to be changed, the resistance genes of insects or diseases transferred from the strain of the plant to another strain of the same type, and, in general, the plants that produce the transfer of genes between species are safe to eat.

Was produced in 1994 the first genetically modified food, namely tomato fruits do not ripen prematurely, do not become susceptible to damage quickly, and become available for all people.

Black holes

Black holes

What happens if you are traveling to a black hole? Will extend your body and then pulls into parts and torn apart, what a black hole? What is known about black holes?

Black hole: is a final stages of potential star, when stop fusion reactions in the heart of a star mass greater than the sun 20 times collapses heart star forever, and accumulate mass in the smallest size, and this is called the body micro-density micro in old age "Body singular" (exceptional), and be a tremendous force of gravity on the body must not escape from something so light, you know this black hole region.

Time dilation at high speeds

Time dilation at high speeds

Can you pass the time differently in the two frames resource persons? And how it can be the age of a twin greater than the age of the other?
The time optical: hopes the idea the following experiment using time-optic, and time-optic is a tube head in each of the terminal plane mirror, and is launching pulse light short in one end of the tube, so bounce inside back and forth reversing mirrors, and measured time limit the number of rebounds pulse.
And optical time set as the speed optical pulse (c) regularly always is equal 3x108m / s regardless of the speed of the light source or the observer.
Suppose that the optical clock and put in a very fast spacecraft, when moving the spacecraft speeds few bounces light beam vertically inside the tube, and if the vehicle moved more quickly it will continue to beam in Ricochet vertically as observer sees in the spacecraft.