Showing posts with label laser. Show all posts
Showing posts with label laser. Show all posts

Imaging More Advanced Than MRI

The MRI was the most advanced way of diagnosing what patients were suffering from. It was cutting edge technology that gave very detailed images of the human body. Technology moves forward and advances are made.

Macquarie University with CSIC and the Institute of Photonic Sciences (ICFO) have found a way of producing images even clearer than MRI. It is done by using artificial atoms and nitrogen doped diamond nanoparticles. Extremely weak magnetic fields in the human body can now be detected. MRI resolution is millimetric. The new system "sees" down to a millionth of a millimeter.

This technique is not invasive. It will provide an understanding of intracellular processes. The problem with the new diagnostic system is that very temperatures are required to make it work. Artificial atoms are encapsulated in a diamond crystal. They can be manipulated by lasers, dragging atoms above the surface for medical diagnosis.
. . . . . . . . . . . . . . . . . . . . .
Health
TwitThis
Australian Blog★                        
Labels: , , , , , , , , , ,

Models Show Lasers Can Produce Energy Using Hydrogen-Boron as Fuel

Energy created by lasers could be the way of the future. Researchers have used models and they show that lasers can produce "cold" energy by nuclear fusion. A new generation of fast, powerful lasers makes this possible. To achieve fusion a short, carefully controlled pulse is required. The pulse target is hydrogen and boron. Creating neutrons is not the objective because they cause radioactivity.

The Australian research is duplicating what is going on at the National Ignition Facility at the Lawrence Livermore National Laboratory in the United States, but they are using deuterium-tritium fuel.

A single laser pulse can generate 500 times more electricity than all the power stations in the US. At first the research team did not believe hydrogen-boron fuel would work. However, models indicated that it was only ten times more difficult than deuterium-tritium. For it to work the laser pulse must be clean, that is, lasting only a million, millionth of a second. Optical energy is then converted to mechanical energy.

It is not commonly known but coal power stations actually emit radioactivity - it is a problem in Germany where they are considering burying polluted material. Producing energy by laser pulsing hydrogen-boron creates less radioactivity than using deuterium-tritium. Coal generation is very dirty compared to hydrogen-boron. The waste product is helium gas. Hydrogen-boron is also plentiful. Team leader Professor Hora say it could be some time before the research becomes reality.
. . . . . . . . . . . . . . . . . . . . .
Society
TwitThis
Australian Blog★                        
Labels: , , , , , , , , , ,

Surgery the Only Cure for Baldness

Bald men try just about anything to turn back a receding hairline. For some, hair loss is at the back and they don't know it until a "friend" tells them. For others the hairline goes out like the tide.

All manner of things are tried from hair tonics, to laser and LED treatments. Some medications offer some hope but they do take away some of your "maleness". The only real solution is transplanting of hair follicles from the back of the head to to the bald area. This is time consuming surgery and the result is new hair spread very sparsely over the bald spot.

For centuries a search has been on for the Holy Grail of baldness cures. Because it is really a hormone problem a lot of work has been done on this. Unfortunately, there are side affects and the mere stopping of further hair loss is the best that can be expected. Stress also causes baldness. Of course, for this there is no treatment.
. . . . . . . . . . . . . . . . . .
Society
Labels: , , , , , , , , ,
Subscribe to: Posts ( Atom )