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4Pi microscope, a microscope that uses interference and fluorescence computers 4×π = 12.56637..., the solid angle of a complete sphere measured in steradians Hermetic detector (also called a 4π detector)
A 4Pi microscope is a laser scanning fluorescence microscope with an improved axial resolution. With it the typical range of the axial resolution of 500–700 nm can be improved to 100–150 nm, which corresponds to an almost spherical focal spot with 5–7 times less volume than that of standard confocal microscopy .
The IBM AP-101B CPU and I/O processor (right) and AP-101S (left) The IBM System/4 Pi is a family of avionics computers used, in various versions, on the F-15 Eagle fighter, E-3 Sentry AWACS, Harpoon Missile, NASA's Skylab, MOL, and the Space Shuttle, as well as other aircraft.
YouTube TV's subscription prices have increased since the platform began. Here are the price changes: 2017: $35 per month. 2019: $49.99 per month. 2020: $64.99 per month. 2023: $72.99 per month.
NFL Sunday Ticket on YouTube TV is a one-stop shop for all NFL fans. You can follow your fantasy team while watching the game in real time with the custom, built-in fantasy integration with Yahoo ...
All you have to do is link your YouTube TV account with your NFL Fantasy or Yahoo Fantasy account, and follow along with your weekly matchup live as you watch the games!
YouTube TV is an American subscription over-the-top streaming television service operated by YouTube, a subsidiary of Google, which in turn is a subsidiary of Alphabet Inc., who announced YouTube TV on February 28, 2017. [2]
A mathematical constant is a key number whose value is fixed by an unambiguous definition, often referred to by a symbol (e.g., an alphabet letter), or by mathematicians' names to facilitate using it across multiple mathematical problems. [1]