Vacuum tube used to display images
Its quietest recent week still sits 1,301% above the old baseline. A news spike leaves the floor where it was.
Share of the last four months of extra attention that landed in its busiest seven days. High means a single story, not a trend.
How much of this topic's shape repeats every year. The annual cycle is estimated per topic and divided out before anything is measured.
Bot and scraper traffic is flat across the week. Anything with implausibly low day-to-day variation, or with no weekday/weekend pattern at all, is dropped before it reaches this page.
Long enough to separate this year's move from last year's level.
No second source yet. Common for consumer and culture topics, which do not show up in developer data.
A cathode ray tube (CRT) is a vacuum tube containing one or more electron guns, which emit electron beams, which are directed and controlled to display images on a phosphorescent screen. The images may represent electrical waveforms on an oscilloscope, a frame of video on an analog television set (TV), digital raster graphics on a computer monitor, or other phenomena like radar targets. A CRT in a TV is commonly called a picture tube. CRTs have also been used as memory devices, in which case the screen is not…
Excerpt from Cathode ray tube on Wikipedia, by its contributors, licensed CC BY-SA 4.0. Trimmed for length.