Beautiful people - selfish?

Energy-saving lamps are dangerous to your health!

Scientists found that ultraviolet radiation of energy saving lamps can cause skin irritation if placed to the light source too close. According to medical experts, problems can arise if a long stay at a distance of less than 30 cm away from some of these lamps. The level of UV radiation produced by such sources of light, comparable to the influence of the sun on a clear day.

However, if the bulb itself is somewhat closed, this problem does not arise. The doctors add that these lights do not increase cancer risk. The reason for attention to technical innovation are complaints of people with sensitive skin to light. In reporting on the troubled light bulbs did not mention any specific manufacturer.

Factories and regulators to develop more stringent rules of production and use of such products. Experts say that the risk of using such lamps may be people who have problems with excessive sensitivity of the skin. For those who are healthy, they do not pose danger. To eliminate the possibility of problems, experts recommend using screens to absorb ultraviolet radiation.

Ultrasound window allowed scientists to peer into the brain

In order to help people suffering from many years of heavy flows of epilepsy, it is necessary to conduct a diagnostic study of the brain. But do it without surgery is not easy. A scientist from the University of Arizona, offers his own method.

In the case of such disease patients require surgery to remove a section of tissue. To do this, set the exact position of the region of the brain, the source of a convulsive seizure.

Electroencephalography is not a good helper, because it provides a low resolution image, and the introduction of the electrodes, allowing up much more accurate maps of the brain, is always a risk of infection (and sometimes there are strange hallucinations ).

The effect is as follows: the phase and magnitude of the voltage passing through the skin, proportional to the pressure of ultrasound directed at a particular body part.

In practice, this means focusing on a small section of skull ultrasonic beam changes its physical properties. The result is a kind of "electric box" that allows you to look inward, to accurately measure the weak electric field, which normally do not go beyond the human skull.

And so there they can be caught using standard equipment such as EEG (electrodes placed on the head as a hat). Further built more accurate maps can be used to determine exactly what area you want to delete.