What Does 720 Mean
Definition of 720 in the Definitions.net dictionary. Meaning of 720. What does 720 mean? Information and translations of 720 in the most comprehensive dictionary definitions resource on the web.
Sitting in your grandparents' basement, staring at M.A.S.H reruns on their old tube TV, you were watching standard definition — 480 lines stacked on top of one another to make up the picture. That's about the same as a DOS-era computer monitor or a 0.3 megapixel camera phone. And though their set refreshed its picture 30 times a second, it lacked the horsepower to process the full image on each scan. So it just drew every other line, updating the remaining ones on the next refresh.
The images flitted on and off the screen so fast that your brain stitched the two sets of lines together. It's called interlacing, and that set's display properties would be classified as 480i: 480 lines, interlaced.This article has been reproduced in a new format and may be missing content or contain faulty links. Contact to report an issue.High definition boosts resolution to 720 lines or more and can update every line in each refresh pass: progressive scan. The latest TVs can display 1080p — progressive video at 1,080 lines of resolution. But can you really tell the difference? Just as with a photograph, the answer lies in how big you want the picture to be and how close to it you sit.A 20/20 human eye can't recognize details smaller than 1/60 of a degree of arc. Don't worry, you don't have to understand that.
With a little math, though, we can use this number to find the distance beyond which the eye has trouble distinguishing one pixel from another. Hp deskjet f4100 series ink. It turns out to be 137 percent of the diagonal measurement of any 16:9 widescreen: around 38 inches from a 32-inch TV. So if you're sitting 5 feet away, you'll never notice the difference between 720 and 1,080 lines of resolution. But if you trade up to a 60-inch screen, that distance jumps to almost six feet. Better push the couch back.Even if you spring for a 1080p set, you'll need 1080p sources to take full advantage of it. Right now, those are limited to Blu-ray and HD DVD players and a couple of game consoles. DVD players without add-ons output only 480p, and though satellite and cable services offer HD channels, these top out at either 720p or 1080i.The larger number might suggest a better picture, but 1080i comes with baggage, too.
LCD and plasma sets always display progressive video. When faced with an interlaced signal, they either combine every two half-resolution frames to make a single complete one or show each half-resolution frame and fudge the missing lines.
So there's a sacrifice: You lose either half the resolution or half the frame rate.When the action speeds up, it gets even trickier: TVs use complex algorithms to account for fast-moving objects that change positions between frames, guessing which part of the image changed. A wrong guess leads to visual artifacts and ghosting.
That's why many sports channels like ESPN HD opt for 720p over 1080i.Of course, a late-night rerun will still look just as bad — until the network remasters the show and releases it on Blu-ray.
Whether expressed as a time of day (4:20), a calendar date (4/20), or a numeral, 420 (that's four-twenty, not four hundred and twenty) is slang for the use and enjoyment of marijuana. In certain weed-friendly cities like Boulder, Colorado, April 20 has come to be known as ' or '.' The term 420 is also a rallying cry for the marijuana legalization movement, which has gained momentum as states like Colorado, Washington, and California have decriminalized pot. (As of September 2018, recreational marijuana use is legal in nine U.S. States, along with the District of Columbia.). It's the date died.
The reggae legend actually succumbed to melanoma on May 11, 1981. Four-twenty doesn't refer to Marley's birthday, either; he was born on February 6, 1945. It's the number of a bill pending in Congress that would make marijuana legal. As of September 2018, the possession of marijuana remains a federal offense. It's the number of chemical compounds found in cannabis, the pot plant.
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There are actually 483 identified compounds, most notably tetrahydrocannabinol or THC, which is what gets you high.