![♪ A cathode ray tube
without an electron gun ♪
♪ A cathode ray tube
without an electron gun ♪](https://content2.mcqstudy.com/ss/tbbt-7-6-00:15:32.275.jpeg.webp)
♪ A cathode ray tube
without an ELECTRON gun ♪
The Big Bang Theory Season 7, Episode 6
![electron transport in graphene.
electron transport in graphene.](https://content2.mcqstudy.com/ss/tbbt-7-6-00:00:12.273.jpeg.webp)
ELECTRON transport in graphene.
The Big Bang Theory Season 7, Episode 6
![You don't have an Open Science Grid
computer or a free electron laser.
You don't have an Open Science Grid
computer or a free electron laser.](https://content2.mcqstudy.com/ss/tbbt-1-12-00:01:33.217.jpeg.webp)
You don't have an Open Science Grid
computer or a free ELECTRON laser.
The Big Bang Theory Season 1, Episode 12
![Getting the electron accelerator set up.
We should be ready day after tomorrow.
Getting the electron accelerator set up.
We should be ready day after tomorrow.](https://content2.mcqstudy.com/ss/tbbt-3-10-00:07:40.123.jpeg.webp)
Getting the ELECTRON accelerator set up.
We should be ready day after tomorrow.
The Big Bang Theory Season 3, Episode 10
![The interference pattern was cool
when the electron beam was on.
The interference pattern was cool
when the electron beam was on.](https://content2.mcqstudy.com/ss/tbbt-3-10-00:20:00.824.jpeg.webp)
The interference pattern was cool
when the ELECTRON beam was on.
The Big Bang Theory Season 3, Episode 10