linkedin post 2018-02-04 06:09:48

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BUILDING ELEMENTS. “Then we build our way up through the periodic table creating heavier and heavier things through different types of processes. In some cases we just add a proton and it grows. In other cases we add a bunch of neutrons and these neutrons decide to flip what they are between protons decaying through a process called the reverse beta decay.” http://www.astronomycast.com/transcripts/AstroCast-080922_transcript.pdf View in LinkedIn
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linkedin post 2018-02-04 06:07:26

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“NEUTRONS in the core. You end up with things like helium-4 which is a helium atom which is number 2 on the periodic table. That 4 means that it has four bits, two protons and two neutrons sitting in its nucleus. Helium-4 is like one of the most stable things that you get.” http://www.astronomycast.com/transcripts/AstroCast-080922_transcript.pdf View in LinkedIn
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linkedin post 2018-02-04 06:04:53

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ABC OF ALL MATTER. “It all comes down to proton and neutron number at the end of the day. The number of protons tells you what type of element it is. So, you have hydrogen with one proton; helium with two protons and you build your way up through the periodic table adding more and more protons.” https://lnkd.in/efDcCRq View in LinkedIn
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linkedin post 2018-02-04 06:03:14

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STEPPING STONES. “Okay so one proton is hydrogen. Two protons is helium. Three protons is lithium, etc. So, that’s where you go up with the numbers. Whenever you see gold or lead, the first number is the number of protons and if you add another proton, you have a new element, right?” http://www.astronomycast.com/transcripts/AstroCast-080922_transcript.pdf View in LinkedIn
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linkedin post 2018-02-05 13:02:34

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VESTIGIAL SELECTION REMNANT. “In a predator–prey example, snails from freshwater springs in northern Mexico develop shells that are 2–3 times harder than is necessary to withstand the maximum biting force of the local molluscivorous cichlid fish. Such defences have been attributed to environment-dependent fitness costs of defences and historical, but now absent, selection.” https://lnkd.in/e5R5vQe View in LinkedIn
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