Skip to main content

Slashdot: Amazing / Strange Things Scientists Calculated in 2021

Amazing / Strange Things Scientists Calculated in 2021
Published on January 01, 2022 at 04:31AM
fahrbot-bot writes: The world is full of beautiful equations, numbers and calculations. From counting beads as toddlers to managing finances as adults, we use math every day. But scientists often go beyond these quotidian forms of counting, to measure, weigh and tally far stranger things in the universe. From the number of bubbles in a typical glass of beer to the weight of all the coronavirus particles circulating in the world, LiveScience notes the 10 weird things scientists calculated in 2021. Number of bubbles in a half-pint glass of beer: up to 2 million bubbles, about twice as many as Champagne. Weight of all SARS-CoV-2 particles: between 0.22 and 22 pounds (0.1 and 10 kilograms).Counted African elephants from space for the first time -- Earth elephants (using satellites and AI) not Space Elephants.Acceleration of a finger snap: maximal rotational velocities of 7,800 deg/s and a maximal rotational acceleration of 1.6 million deg/s squared -- in seven milliseconds, more than 20 times faster than the blink of an eye, which takes more than 150 milliseconds.Calculated pi to 62.8 trillion decimal places.Updated the "friendship paradox" equations.Theoretical number and mass of all Black Holes: about 1% of all ordinary matter (not dark matter) in the universe.How long would it take to walk around the moon? At 4 hours a day, it would take about 547 Earth days, or about 1.5 years.How many active satellites currently orbit the planet? As of September 2021, there were around 7,500 active satellites in low Earth orbit.The "absolute limit" on the human life span: probably 120 to 150 years.

Read more of this story at Slashdot.

Labels:

Comments

Post a Comment

Popular posts from this blog

Slashdot: AT&T Now Lets Customers Lock Down Account To Prevent SIM Swapping Attacks

AT&T Now Lets Customers Lock Down Account To Prevent SIM Swapping Attacks Published on July 02, 2025 at 01:30AM AT&T has launched a new Account Lock feature designed to protect customers from SIM swapping attacks. The security tool, available through the myAT&T app, prevents unauthorized changes to customer accounts including phone number transfers, SIM card changes, billing information updates, device upgrades, and modifications to authorized users. SIM swapping attacks occur when criminals obtain a victim's phone number through social engineering techniques, then intercept messages and calls to access two-factor authentication codes for sensitive accounts. The attacks have become increasingly common in recent years. AT&T began gradually rolling out Account Lock earlier this year, joining T-Mobile, Verizon, and Google Fi, which already offer similar fraud prevention features. Read more of this story at Slashdot.
Post a Comment
Read more

Slashdot: AT&T Outlines $250 Billion US Investment Plan To Boost Infrastructure In AI Age

AT&T Outlines $250 Billion US Investment Plan To Boost Infrastructure In AI Age Published on 2026-03-10T20:00:00Z AT&T plans to invest more than $250 billion over the next five years to expand U.S. telecom infrastructure for the AI age. The company says it will also hire thousands of technicians while partnering with AST SpaceMobile to extend coverage to remote areas. Reuters reports: Rapid adoption of artificial intelligence, cloud computing and connected devices has prompted telecom operators to invest heavily in fiber and 5G networks as they also seek to fend off intensifying competition from cable broadband providers. AT&T, which has about 110,000 employees in the U.S., said the new hires will help build and maintain its infrastructure. The outlay includes capital expenditure and other spending, the company said. The spending will focus on expanding its fiber and wireless networks, including accelerating deployment of fiber broadband, 5G home internet and satellite co...
Post a Comment
Read more

Slashdot: Protecting 'Funko' Brand, AI-Powered 'BrandShield' Knocks Itch.io Offline After Questionable Registrar Communications

Protecting 'Funko' Brand, AI-Powered 'BrandShield' Knocks Itch.io Offline After Questionable Registrar Communications Published on December 16, 2024 at 01:04AM Launched in 2013, itch.io lets users host and sell indie video games online — now offering more than 200,000 — as well as other digital content like music and comics. But then someone uploaded a page based on a major videogame title, according to Game Rant. And somehow this provoked a series of overreactions and missteps that eventually knocked all of itch.io offline for several hours... The page was about the first release from game developer 10:10 — their game Funko Fusion, which features characters in the style of Funko's long-running pop-culture bobbleheads. As a major brand, Funko monitors the web with a "brand protection" partner (named BrandShield). Interestingly, BrandShield's SaaS product "leverages AI-driven online brand protection," according to their site, to "detect...
Post a Comment
Read more