Maser
A maser (/ˈmeɪzər/), an acronym for "microwave amplification by stimulated emission of radiation", is a device that produces coherent electromagnetic waves through amplification by stimulated emission. The first maser was built by Charles H. Townes, James P. Gordon, and H. J. Zeiger at Columbia University in 1953. Townes, Nikolay Basov and Alexander Prokhorov were awarded the 1964 Nobel Prize in Physics for theoretical work leading to the maser. Masers are used as the timekeeping device in atomic clocks, and as extremely low-noise microwave amplifiers in radio telescopes and deep space spacecraft communication ground stations.
Contemporary masers can be designed to generate electromagnetic waves at not only microwave frequencies but also radio and infrared frequencies. For this reason Charles Townes suggested replacing "microwave" with the word "molecular" as the first word in the acronym maser.
The laser works by the same principle as the maser, and the maser was the forerunner of the laser, inspiring theoretical work by Townes and Arthur Leonard Schawlow that led to its invention in 1960. When the coherent optical oscillator was first imagined in 1957, it was originally called the "optical maser." This was ultimately changed to laser for "Light Amplification by Stimulated Emission of Radiation." Gordon Gould is credited with creating this acronym in 1957.
Maser (disambiguation)
A maser is a device that produces coherent electromagnetic waves.
Maser may also refer to:
Maser (rocket)
Maser is a sounding rocket that is used in the MASER microgravity research rocket programme, which is operated by the Swedish Space Corporation (SSC). The main customer is the European Space Agency (ESA), and in particular its EMIR and ELIPS programmes.
The launches take place at Esrange in Northern Sweden. The programme offers 6-7 minutes of microgravity and full recovery of the experiment modules with helicopter immediately after flight.
Missions
See also
References
Podcasts:
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Breathe
by: MassariLately you've been getting upset
With every little thing I say
Feel like I'm losing my friend
But I don't wanna say goodbye
Maybe all we need is a little bit space
Before we pack it up
Throw it all away
I'm tryin' to make it right
But all we do is fight
It feels like these walls are closin' in
We gotta let it
Breathe Breathe Breathe
Breathe Breathe Breathe
We can talk about that shits
All night long
But we ain't getting nothing solved
We gotta let it
Breathe Breathe Breathe
Breathe Breathe Breathe
We just keep on going back and off
It don't make sense anymore
We gotta let it breathe (Breathe)
We gotta let it breathe (Breathe)
Girl remember we would talk all night
And I would kiss you through the phone (Ohhh)
Try to kiss but you was wearing in bed
I know it always turns you on
Maybe all we need is a little bit space
Before we pack it up
Throw it all away
I'm tryin' to let you know
Don't wanna let you go
I can't let this starts the fool way
We gotta let it
Breathe Breathe Breathe
Breathe Breathe Breathe
We can talk about that shits
All night long
But we ain't getting nothing solved
We gotta let it
Breathe Breathe Breathe
Breathe Breathe Breathe
We just keep on going back and off
It don't make sense anymore
We gotta let it breathe (Breathe)
Take a little time to breathe (Breathe Breathe)
We gotta let it breathe (Breathe)
Take a little time to breathe
Tell me how the hell we ended up here
We used to be so close (Ohhh)
And baby when you love somebody
You gotta learn to let him go
We gotta let it
Breathe Breathe Breathe
(We gotta let it breathe)
Breathe Breathe Breathe
We can talk about that shits
All night long
But we ain't getting nothing solved
We gotta
We gotta let it
Breathe Breathe Breathe
(We gotta let it breathe)
Breathe Breathe Breathe
We just keep on going back and off
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