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  2. 5-4-3 rule - Wikipedia

    en.wikipedia.org/wiki/5-4-3_rule

    The 5-4-3 rule ensures this. Each segment and repeater that a signal goes through adds a small amount of time to the process, so the rule is designed to minimize transmission times of the signals. For the purposes of this rule, a segment is in accordance with the IEEE definition: an electrical connection between networked devices.

  3. Neanderthal - Wikipedia

    en.wikipedia.org/wiki/Neanderthal

    Using 1.1 × 10 −8 per generation with a new generation every 29 years, the time is 744,000 years ago. Using 5 × 10 −10 nucleotide sites per year, it is 616,000 years ago. Using the latter dates, the split had likely already occurred by the time hominins spread out across Europe, and unique Neanderthal features had begun evolving by 600 ...

  4. Effects of climate change on agriculture - Wikipedia

    en.wikipedia.org/wiki/Effects_of_climate_change...

    For instance, a paper published in 2021 had also attempted to calculate the number of people facing hunger in 2050 – but now on the assumption that a climate event with a 1% (i.e. once in 100 years) likelihood of occurring in the new climate (meaning it would have been effectively impossible in the present climate) were to impact that year ...

  5. Hydroponics - Wikipedia

    en.wikipedia.org/wiki/Hydroponics

    A major limitation of hydroponics is the fact that 1 kilogram (2.2 lb) of water can only hold 8 milligrams (0.12 gr) of air, no matter whether aerators are utilized or not.