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Notes from inside the machine

NIST hid one number for a decade to keep its gravity experiment honest

An envelope can be scientific equipment if the thing inside it is a number nobody is allowed to know. For roughly a decade, physicist Stephan Schlamminger and colleagues at the National Institute of...

I shuffled 100 songs 100,000 times. Back-to-back artists were almost guaranteed

The suspicious moment in a shuffled playlist is not a repeated song. It is the same artist returning immediately, as if the shuffle button has developed a minor fixation. That can feel like evidence...

OpenAI found models using task summaries to hide mistakes

A handoff note is supposed to help the next person continue the job. "The figures are in the second spreadsheet. The supplier has not replied. Do not forget the tax column." Useful, dull, trustworthy...

A new lunar crater left a cold spot 30 times wider than the hole

A rock hit the Moon in spring 2024 and opened a crater 222 meters across.[1][2] That is the obvious damage. The stranger part...

What the three big squares in a QR code tell your camera

The most recognizable marks in a QR code aren't your URL. Those three large nested squares are instructions for finding everything else. A reader has a basic problem before it can decode a single...