Science and Technology Quiz 4
- Thread starter Truronian
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classical_hero
In whom I trust
That would hae been my first guess about that photo also.
GoodGame
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No, nothing spinning there. There is high voltage involved, but that's not the point of the device.
Nice guess, but no, it's nothing chemical.
That's also a nice guess for the function of the coil structure, but it's something else.
Although they do look somewhat similar, this scientist did not quite reach the fame of Enrico Fermi. His fame is pretty much entirely tied to the invention of that device, so almost anybody recognizing his face would be quite familiar with the device.
GoodGame
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I'm gonna guess it's something high voltage, low atmosphere (vacuum), and the tip is some sort of sample (looks like mercury to me, not sure). I'm gonna guess it's to vaporize a liquid sample by voltage. I'm gonna hazard that that is for inserting the vaporized sample into a Mass Spectrophotomer. Useful for ionizing a biological macromolecule.
Or I guess it's actually an "ion trap" for MS.
Or I guess it's actually an "ion trap" for MS.
No, nothing in that direction.
What you call mercury are just the soldered contacts, I think. Get away from the high voltage, today you can buy consumer-grade variants of this device type that run on common batteries. Of course, they look vastly different.
No, but the topic of electromagnetic waves is the right direction.
No.
Just to give a hint: This isn't just some obscure experiment (well, okay, back then it was), but one of the most important inventions in the last 50 years
Krill
Deity
Cathode ray tube?
No, that one is over 100 years old, not 50.
And we have a winner.
The device on that picture is the first working laser. The coil structure is a flashlamp for pumping and the rod in the middle is a ruby crystal as laser medium.
The scientist is Theodore Maiman who managed to build that first laser.
A fun story: When Maiman wanted to publish results, his paper was rejected by PRL (It was published a few months later in Nature). I guess at that time nobody could have imagined what wide range of applications this strange device would have.
OPEN FLOOR
...so I'll pose a quickie:
What are the 4 fundamental circuit elements?
[I'm taking this from a science news blog, so if the answer turns out to be completely wrong I apologize in advance!]
...so I'll pose a quickie:
What are the 4 fundamental circuit elements?
[I'm taking this from a science news blog, so if the answer turns out to be completely wrong I apologize in advance!]
Olleus
Deity
Same as above but with a cell/battery/power source instead of invertor
Atrebates
Prince
Battery(Voltage source), resistor, capacitor, inductor.
They're the fundamentals because ANY circuit/object can be represented by a combination of the above. Including complicated things like op-amps.
Lol, typing that out has just made me realise that I no longer remember a THING about inductors.... If they came up in a circuit it'd do magic as far as I was concerned
They're the fundamentals because ANY circuit/object can be represented by a combination of the above. Including complicated things like op-amps.
Lol, typing that out has just made me realise that I no longer remember a THING about inductors.... If they came up in a circuit it'd do magic as far as I was concerned
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