Technological metals – Term introduced in 2007

Technological metals - Jack Lifton

Technological metals – Term introduced in 2007

Technological metals – A concept that is relatively new, in contrast to the actual use of metals in science and industry. The date in 2007 was introduced by American chemist and physicist Jack Lifton. Since then, it is often used in industry. Generally, you can say that the tech. metals are basically precious metals and those that are necessary for the production of hi-tech devices and engineering systems. This category includes:

  • commercial production of miniature electronic devices
  • advanced military systems
  • generating electricity using alternative sources, for example solar panels or wind turbines
  • electricity storage using batteries and cells.

There are of course a lot of other uses of these elements. Almost all technological metals are a by-product of the treatment of basic metals (except for precious and lithium).

Supersensitive cameras – Detects threats for Earth

Supersensitive cameras - Detects threats for Earth

Supersensitive cameras – Detects threats for Earth

Supersensitive cameras – Will be the heart of the NEOSTEL ground-based telescope, whose task will be to detect dangerous for Earth objects. It will be part of the space situational awareness system (SSA) created by the European Space Agency (ESA). It’s about supervising space and tracking space objects. The NEOSTEL ground-based telescope is designed to help you with tasks that can detect various threats to objects Earth. The heart of the telescope will be the super sensitive CCD (Charge Coupled Device) cameras used for astronomical observations. Creotech Instruments S.A. is responsible for the development and production of cameras.
The cameras are cooled down to -50 ° C and maintained in a similar environment to the vacuum, so that when installed on the telescope it can observe the object of the size of a tennis ball, from a distance of 1000 km. This will not only detect asteroids that threaten Earth, but also space debris that can threaten functioning satellites and damage or destroy International Space Station (ISS).

VR may cause vomiting – Because of motion sickness

VR may cause vomiting - VR-Helm

VR may cause vomiting – Because of motion sickness

VR may cause vomiting – Because of motion sickness – In order to fully enter the virtual reality,
one has to deceive not only the eyes but also the other senses.
This is also the reason why
many virtual reality users can cause problems with motion sickness.
Then the impressions
received by the liar do not agree with the visual stimulus.
In motion sickness,
the eyes see that the body is not moving, and that the labyrinth registers continuous motion,
tilting and acceleration, in the case of nausea caused by virtual reality is quite the opposite.

Eyes see the perfect simulation of space, covering the entire field of view.

However, the brain does not record any motion signals from the labyrinth or other senses.

In both cases there is a sensual dissonance that causes malaise, dizziness, fatigue,
and even vomiting.

First photographing method – Invention of daguerreotype

First photographing method - invention of daguerreotype

First photographing method – Invention of daguerreotype

First photographing method – Invention of daguerreotype – In 01.09.1839,
the French Academy of Sciences
announced the invention of the daguerreotype,
the first
shooting method. But it was a very expensive method. Which did not give the
possibility of obtaining
multiple copies of a single negative.

John Harrison – English carpenter and watchmaker

John Harrison - English carpenter and watchmaker

John Harrison – English carpenter and watchmaker

John Harrison – English carpenter and watchmaker – In 24.03.1693 born
English
carpenter and watchmaker J. Harrison. Creator of the first clock (chronometer),
used
on ships and helpful in determining longitude. He was involved in the construction
and modernization of
clocks.
One of the first chronometer weighed 34 kg, one of the last 1.5 kg.

GPS system – It uses 31 satellites orbiting the Earth

GPS system - GPS Receivers

GPS system

GPS system – It uses 31 satellites orbiting the Earth. Each is equipped with an atomic clock and emits signals in which encoded is its location and the clock. Satellites are close to 20 thousands km. above the Earth. The attraction is there so much weaker satellites clocks ahead of the Earth about 38 millionths of a second a day. To get the accuracy of 10-15 meters, the GPS receiver needs to know the super-accurate time transmission of the satellite signal.  Error no greater than 50 nanoseconds.