Government spin AGAIN

[expat]

do you want to know what cathode 'bounce' is

*smug b@stard warning*

Isn't it why you use a tetrode (or pentode)?

[Platypus]

At a guess (i.e. without checking some of the numbers with a calculator) I scored 90%+ in 15-20 mins reading through that paper.

You might be surprised: allocation of marks in dependent on particular key words being used, e.g. for 8c if you don't use the word they're looking for you don't get the mark, even if you exhibit a deep understanding of the workings of the universe.

[expat]

You might be surprised: allocation of marks in dependent on particular key words being used, e.g. for 8c if you don't use the word they're looking for you don't get the mark, even if you exhibit a deep understanding of the workings of the universe.

Excuse me, there's only Hubble redshift, background radiation, and light elements. 8b does redshift so 8c must be the background. Whether or not you say cosmic or microwave, you definitely have it there.

[TykeMerc]

I checked, my eldest did in fact get issued with an equations sheet with the exam papers, he thinks it's barking mad too.

I have to admit that I despair at the state of science, mathematics and engineering education in this country.

[EternalOptimist]

Go on then, enlighten us...

oh its one of those principles, thingies, you were talking about. like once you know them you can deduce the world.
IIRC there was a problem in amplifiers and the cause was that the electrons moved through the vacuum, hit the cathode but then bounced off before being reattracted. This proved that these things had mass. i.e. its a physical bounce rather than a magnetic type one.

interesting if you do a degree in ancient electronics, otherwise, useless, totally useless.

[TimberWolf]

oh its one of those principles, thingies, you were talking about. like once you know them you can deduce the world.
IIRC there was a problem in amplifiers and the cause was that the electrons moved through the vacuum, hit the cathode but then bounced off before being reattracted. This proved that these things had mass. i.e. its a physical bounce rather than a magnetic type one.

interesting if you do a degree in ancient electronics, otherwise, useless, totally useless.

Pretty much everything has mass when it changes direction, even massless things.

[Bob Dalek]

oh its one of those principles, thingies, you were talking about. like once you know them you can deduce the world.
IIRC there was a problem in amplifiers and the cause was that the electrons moved through the vacuum, hit the cathode but then bounced off before being reattracted. This proved that these things had mass. i.e. its a physical bounce rather than a magnetic type one.

interesting if you do a degree in ancient electronics, otherwise, useless, totally useless.

There was a small dimple in my understanding of our World that has now been filled. Thank you.

[EternalOptimist]

Pretty much everything has mass when it changes direction, even massless things.

There is an object in the universe that can change direction so quickly that it can be proven to have no mass, yet the inertia is so great that it must have infinite mass.
It's called my project manager

[dinker]

Yes it has. 40 years ago science was respected and most people understood it was responsible for national wealth.
Now people are too stupid to make the connection.

national wealth is created by borrowing money, innit?