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Random number generation with lava lamps

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Tom Scott explains how Cloudflare uses a wall of lava lamps to generate random numbers. A video camera is pointed at the wall, and the movement in the lamps plus noise from the video provides randomness, which is used to secure websites.

Even though computers can do many things on their own, they still need help from the physical world for true unpredictability. The robot overlords aren’t here yet. [via kottke]

Tags: Cloudflare, lava lamp, randomness, Tom Scott

[post_excerpt] => Tom Scott explains how Cloudflare uses a wall of lava lamps to generate…

Tags: Cloudflare, lava lamp, randomness, Tom Scott

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Decide filter: Returning post, everything seems orderly :Random number generation with lava lamps

Array ( [post_title] => Random number generation with lava lamps [post_content] =>

Tom Scott explains how Cloudflare uses a wall of lava lamps to generate random numbers. A video camera is pointed at the wall, and the movement in the lamps plus noise from the video provides randomness, which is used to secure websites.

Even though computers can do many things on their own, they still need help from the physical world for true unpredictability. The robot overlords aren’t here yet. [via kottke]

Tags: Cloudflare, lava lamp, randomness, Tom Scott

[post_excerpt] => Tom Scott explains how Cloudflare uses a wall of lava lamps to generate…

Tags: Cloudflare, lava lamp, randomness, Tom Scott

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Atlantic Archives - Data Visualization Design Experts in Austin, Houston, Dallas

Data Visualization Design Experts in Austin, Houston, Dallas

Data Visualization Design Experts in Austin, Houston, Dallas

Atlantic

2 posts

Not so likely life of The Simpsons

For The Atlantic, Dani Alexis Ryskamp compares the financials of The Simpsons against present day medians, arguing that the fictional family’s lifestyle is no longer attainable: The purchasing power of Homer’s paycheck, moreover, has shrunk dramatically. The median house costs 2.4 times what it did in the mid-’90s. Health-care expenses for one person are three times what they were 25 years ago. The median tuition for a four-year college is...

Rise of data art

Data art is on the rise. Jacoba Urist for the Atlantic gets into the beginnings and its current prevalence. Art is a constant march of expansion, according to Harvey Molotch, a professor of sociology and metropolitan studies at New York University, whose research includes the sociology of art. Pop art incorporated comic books and ordinary soup cans. Edvard Munch's expressionist painting, The Scream captured the anxiety and isolation of modern...