Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Looking further into the Universe

22.04.2002


How can the Universe be studied? There is no way to affect a research object of infinite dimensions. It means that the research can only be carried out via observations, employing all methods available. To this end scientists have been inventing more and more powerful telescopes which would enable them to examine closely remote spots of the Universe and to hear a `voice` of the sky at all available bandwidths. The scientists are planning to dispatch to space a cryogen submillimetric telescope called `Submillimetron`, which is supposed to play the role of a supersensitive `ear`. Hopefully, this device will provide astronomers with the first map of the Universe radiation at a 3 THz waveband. It is worth noting that the wavelength of this bandwidth makes tenth parts of a millimetre, it means that the bandwidth is at the boundary between infrared rays and microwave frequency. The stars are almost invisible at submillimetric waves and do not prevent the scientists from seeing remote Galaxies.



The Galaxies are so far away, that the time period required for their radiation to reach the Earth is close to the age of the Universe. By now the scientists have found only a few such remote Galaxies with the help of optic telescopes, while `Submillimetron` will find about a million of such objects, this invention will reveal an almost unexplored world. A team of the experienced scientists from Sweden, Finland and Russia are developing the unique device. The Russian party is represented by Academician N. Kardashev, who is heading the research activities of the project, the following entities being involved in the project implementation: Centre of Astronomy and Space, (Physical Institute of the Academy of Sciences), Institute of Physical Problems (Russian Academy of Sciences), Institute of Radio Engineering and Electronics (Russian Academy of Sciences) as well as Space Rockets Corporation `Energy`, which is in charge of the telescope delivery to the space station.

It is impossible to perceive THz-radiation on the Earth - it is overlapped by the infrared radiation. That is why the telescope is to be transported to space `to listen to the stars` without disturbances, although even in space the telescope will have to be screened -from the solar and earth radiation in this case.


The sensor of the new telescope is the so-called energy absorber. It is a small metal `wire`, or film, to be more precise, 5 microns long, 0.2 microns wide and less than 0.02 microns thick. This wire is a core of the antenna. The `wire` is made of a non-superconducting metal, the ends of the wire being connected to superconducting electrodes (made of aluminium or niobium).

At an extremely low temperature (0.1 ?) the galactic noise, focused on the sensor of the antenna, heats up the conduction electrons in a non-superconducting metal. To find and to record this tiny change of the electric current, the specialists of the Physical Faculty, Moscow State University are producing a special chip, containing an amplifier and a commutator. Due to it, a minor change of the electric current can be transformed into the voltage change.

Despite the seeming simplicity of the physical idea, it is not easily implemented. The scientists are still facing a lot of problems as regards to the efficiency of heating the electrons at this radiation bandwidth. However, the researchers are confident that these issues can be solved. And pretty soon, in about five years, we shall be able to hear the `voice` of the sky at a new bandwidth. With the help of this new device the astronomers and physicists will be able to answer the questions they are not even thinking about yet. Probably, they will hear the voice of an extraterrestrial civilisation. Or perhaps, they will discover something absolutely new, for instance, a type of substance previously unknown. Anyway, the researchers will acquire new opportunities to study the Universe.

Olga Maksimenko | alphagalileo

More articles from Physics and Astronomy:

nachricht Two dimensional circuit with magnetic quasi-particles
22.01.2018 | Technische Universität Kaiserslautern

nachricht Meteoritic stardust unlocks timing of supernova dust formation
19.01.2018 | Carnegie Institution for Science

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Artificial agent designs quantum experiments

On the way to an intelligent laboratory, physicists from Innsbruck and Vienna present an artificial agent that autonomously designs quantum experiments. In initial experiments, the system has independently (re)discovered experimental techniques that are nowadays standard in modern quantum optical laboratories. This shows how machines could play a more creative role in research in the future.

We carry smartphones in our pockets, the streets are dotted with semi-autonomous cars, but in the research laboratory experiments are still being designed by...

Im Focus: Scientists decipher key principle behind reaction of metalloenzymes

So-called pre-distorted states accelerate photochemical reactions too

What enables electrons to be transferred swiftly, for example during photosynthesis? An interdisciplinary team of researchers has worked out the details of how...

Im Focus: The first precise measurement of a single molecule's effective charge

For the first time, scientists have precisely measured the effective electrical charge of a single molecule in solution. This fundamental insight of an SNSF Professor could also pave the way for future medical diagnostics.

Electrical charge is one of the key properties that allows molecules to interact. Life itself depends on this phenomenon: many biological processes involve...

Im Focus: Paradigm shift in Paris: Encouraging an holistic view of laser machining

At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.

No other industry has attracted as much public attention to composite materials as the automotive industry, which along with the aerospace industry is a driver...

Im Focus: Room-temperature multiferroic thin films and their properties

Scientists at Tokyo Institute of Technology (Tokyo Tech) and Tohoku University have developed high-quality GFO epitaxial films and systematically investigated their ferroelectric and ferromagnetic properties. They also demonstrated the room-temperature magnetocapacitance effects of these GFO thin films.

Multiferroic materials show magnetically driven ferroelectricity. They are attracting increasing attention because of their fascinating properties such as...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

10th International Symposium: “Advanced Battery Power – Kraftwerk Batterie” Münster, 10-11 April 2018

08.01.2018 | Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

 
Latest News

Multifunctional Platform for the Delivery of Gene Therapeutics

22.01.2018 | Life Sciences

The world's most powerful acoustic tractor beam could pave the way for levitating humans

22.01.2018 | Power and Electrical Engineering

Siberian scientists learned how to reduce harmful emissions from HPPs

22.01.2018 | Power and Electrical Engineering

VideoLinks