Skip to main content

A couple of words of radio-waves and spectroscopy


Spectra of Hydrogen and Helium
(Picture I)
https://marxjatalous.blogspot.com/

Kimmo Huosionmaa

The most modern radar technology bases the same technology, what is used in the radio astronomy. One of the most interesting parts of this technology is so-called radio-spectrometer, what is used to determine the elements what is in some target. Those echoes can be separated by using Prisma or hila, what would help to get the spectrum visible. And the black lines in the spectrum are caused by the elements, what is sending the radiation.

Radio-spectrometer works like normal spectrometer, what would send to the laser-ray to the target, and then every atom would send the radiation in their unique frequency. Every element in the universe has the own frequency of electromagnetic radiation, and that would help to detect the elements what the target consists. The radio spectrometer would work in the same way, but the echo, what the elements would give are coming in the radio-frequency, but the methodology that is used is similar to the normal spectroscopic.

The reason for those dark lines, what is seen in spectroscopic photos is that when some element sends the radiation, would that wave movement cause that the waves would weaken. Actually, that phenomenon caused by the polarization of that frequency. Some scientists believe that this phenomenon can be used to make an object invisible in the frequency of light. Every electromagnetic radiation can be turned away from the object like radio waves, and in theory is possible to make the form where the light would travel across it like in STEALTH-aircraft.


Another way to make some object invisible to the human eye would be used the led-light, what would suppress the waves with counter waves, that the light would not snap from the surface of the object. But this technology needs that every frequency of the electromagnetic radiation must be suppressed differentially.  This means that every frequency of the spectrum must be made own led-lights, what would send the counter light exactly with the same power and frequency, what the incoming radiation has.


The effect is similar like in scenario, that somebody would send the counter waves from the beach to sea. If the counterwaves could send against incoming waves they would suppress even the large tsunamis, because every wave, what would hit the tsunami, will decrease its energy, but, of course, the huge turbines can be used against those waves, but this technology needs large-scale investors. And that's why this is possible in the distant future.

Picture I


https://www.sciencephoto.com/image/664032/530wm/C0250250-Hydrogen_and_helium_spectra-SPL.jpg
Labels:

Comments

Post a Comment

Popular posts from this blog

The hydrogen-burning supernovas are interesting models.

"Researchers discovered a significant magnesium anomaly in a meteorite’s dust particle, challenging current astrophysical models and suggesting new insights into hydrogen-burning supernovas. (Artist’s concept.)Credit: SciTechDaily.com" (ScitechDaily, Rare Dust Particle From Ancient Extraterrestrial Meteorite Challenges Astrophysical Models) If the star is too heavy when its fusion reaction starts, it can detonate just at that moment, when its fusion starts. If the collapsing nebula is heavy enough, it can form a black hole straight from the nebula. But if the nebula's gravity is too heavy to  form  the blue giant or too  small  it can collapse  straight  into a black hole . If  the forming star is a little bit larger than the blue supergiants. It can explode immediately when the fusion starts.    The theory of hydrogen-burning supernovas consists  model  of the giant stars that explode immediately after their fusion starts. When the interstellar nebula  falls  it can form
Post a Comment
Read more

The ancient galaxy mirrors the Milky Way.

"This image shows the galaxy REBELS-25 as seen by the Atacama Large Millimeter/submillimeter Array (ALMA), overlaid on an infrared image of other stars and galaxies. The infrared image was taken by ESO’s Visible and Infrared Survey Telescope for Astronomy (VISTA). In a recent study, researchers found evidence that REBELS-25 is a strongly rotating disc galaxy existing only 700 million years after the Big Bang. This makes it the most distant and earliest known Milky Way-like galaxy found to date. Credit: ALMA (ESO/NAOJ/NRAO)/L. Rowland et al./ESO/J. Dunlop et al. Ack.: CASU, CALET" (ScitechDaily, Astronomers Baffled by Ancient Galaxy That Mirrors Modern Milky Way) Researchers found the youngest Milky Way-type galaxy. The distance to the galaxy is enormous. And the light that comes from that galaxy named REBELS-25 comes from the Universe that is only 700 million years old. The distance to that galaxy is enormous about 236 billion light years. And that means it's a very dista
Post a Comment
Read more

Transcendence, or the ability to transcendent thinking may grow in teen's brains.

   "New research has discovered that transcendent thinking, which involves analyzing the broader implications of situations, can foster brain growth in adolescents. This form of thinking enhances brain network coordination, impacting developmental milestones and future life satisfaction. The study emphasizes the need for education that encourages deep, reflective thought, underscoring the critical role of adolescents in their own brain development". (ScitechDaily, Scientists Discover That “Transcendent” Thinking May Grow Teens’ Brains) "Scientists at  USC Rossier School of Education’s Center for Affective Neuroscience, Development, Learning and Education (CANDLE) have discovered that adolescents who grapple with the bigger meaning of social situations experience greater brain growth, which predicts stronger identity development and life satisfaction years later". (ScitechDaily, Scientists Discover That “Transcendent” Thinking May Grow Teens’ Brains) The transcendenc
Post a Comment
Read more