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TIL about hash functions. A hash function is any function that can be used to map data of arbitrary size to fixed-size values. The values returned by a hash function are called hash values, hash codes, digests, or simply hashes.

by whatilearned May 5, 2022, 1:29 am

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TIL of “Unit 731”, a secret Japanese research facility disguised as a water treatment plant during WWII. Responsible for some of the most notorious war crimes ever committed, researchers captured by the USA were secretly given immunity in exchange for the data gathered from their human experiments.

by whatilearned April 22, 2022, 12:29 pm

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TIL that after the Enron investigation ended, the company’s entire email database became public domain. It has become a valuable research tool cited in over 3,000 data science papers, since access to company emails is normally bound by privacy and security restrictions.

by whatilearned April 22, 2022, 4:54 am

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TIL: When a company is hacked, all the data that is leaked is now considered public domain in the US. This includes private information about YOU that would be illegal to publish otherwise. Other companies will download, analyze, make use of, and sell this information.

by whatilearned April 20, 2022, 2:59 pm

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TIL that a USB drive, paradoxically, gets lighter with the more data you store on it.

by whatilearned March 4, 2022, 6:33 am

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TIL about the Doppler On Wheels network where mobile Doppler radar trucks are used to collect data in snowstorms, in hurricanes, close to tornadoes, and other severe weather events

by whatilearned March 2, 2022, 1:24 am

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TIL New data from a scientific “accident” has suggested that life may actually flash before our eyes as we die.

by whatilearned February 26, 2022, 7:00 pm

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I never thought I’d have a fetish for collecting data on people.

by cringeyjokesman February 23, 2022, 5:50 pm

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Sort ambiguous data like dates.

by HistoryBuff February 18, 2022, 7:11 pm

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TIL that 2 bits of data is called a Crumb and 4 bits of data is called a Nibble. So 1, 2, 4, and 8 bits of data are called Bit, Crumb, Nibble, and Byte.

by whatilearned January 20, 2022, 1:50 pm

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TIL of the astronomer Percival Lowell, who achieved great fame as a science popularizer in the early 1900s despite all his major theories being wrong. His greatest scientific contribution was initiating a search for a ninth planet based on faulty data that ended up finding Pluto by coincidence.

by whatilearned January 14, 2022, 3:05 pm

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New data has claimed that only 52% of students leave school with an acceptable grade in Maths.

by cringeyjokesman January 12, 2022, 3:02 pm

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