Daniel Jonas

@DanielCJonas

World history, health, and risk. Rabbit Hole: 13-16th Europe. Reading: TBD. Listening: . Watching: Mindhunter. Follow:

Vrijeme pridruživanja: travanj 2019.

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  1. Prikvačeni tweet
    1. sij

    Wealth of knowledge embedded in these threads ✨

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  2. prije 18 sati

    Not really 🧐: "diamonds are not forever, at least on the surface of this planet. It is, in fact, diamond’s sibling structure, graphite, that is the more stable form, and so all diamonds,..., are actually turning slowly into graphite."

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  3. prije 18 sati

    Diamonds are forever: "The word diamond is derived from the Greek adamas, meaning “unalterable” or “unbreakable.”"

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  4. prije 18 sati

    Glass and its role within our culture: "The very thing that we value it for has also disqualified it from our affections: it is inert and invisible, not just optically, but culturally."

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  5. prije 18 sati
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  6. 28. sij
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  7. 28. sij

    When you 1st see the beer your drinking: "As a result people could see for the first time what their beer looked like, and they often did not like what they saw: the so-called top-fermented brews were variable not just in their taste, but in their color and clarity too."

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  8. 27. sij

    Absence of glass in the East had unintended consequences: "The lack of glass technology in the East meant that, despite their technical sophistication, they never invented the telescope nor the microscope, and had access to neither until Western missionaries introduced them."

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  9. 27. sij

    Romans and the introduction of cheap glass: "The invention of drinking glasses meant that the color, transparency, and clarity of wine became important, too. We are used to seeing what we drink, but this was new to the Romans, and they loved it."

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  10. 25. sij
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  11. 25. sij

    Twitter doesn't have to be hard - be more like and read this. "People have enough "yes" men/women in their lives, be someone that makes them think" So, it's been almost a year now since you've posted, is there anything that you'd change?

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  12. 24. sij

    Ready to invest in some higher quality chocolate, I've found 's guide a worthy no-nonsense place to start 👇 And remember, no chewing allowed!

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  13. 24. sij
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  14. 24. sij

    On the transcendent possibilities of "solid air": "...if ever there was a material that represented our ability to explore the vastness of the solar system while at the same time speaking of the fragility of human existence, if ever there was a blue-sky material—it is aerogel."

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  15. 24. sij

    Why is the sky blue? "The reason is that the shorter wavelengths of light are more likely to be scattered than the longer ones, which means that blues get bounced around the sky more than reds and yellows. So instead of seeing a white sky when we look up, we see a blue one."

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  16. 23. sij
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  17. 22. sij

    Don't chew chocolate! "genius of creating hot chocolate in the mouth is that the cocoa butter encapsulates the flavor molecules until the moment you eat it, and only then does it release its cocktail of more than six hundred exotic molecules into your mouth and up your nose."

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  18. 22. sij

    On why dark chocolate is so bitter: "These are molecules such as caffeine and theobromine, which are extremely bitter and astringent. They activate the bitter and sour taste receptors and complement the sweetness of the sugar."

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  19. 22. sij

    Concrete as a potential air purifier: Titanium dioxide..."can also reduce the level of nitrogen oxide in the air, produced by cars, like a catalytic converter. Several studies have shown that this works" One such analysis:

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  20. 21. sij
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  21. 21. sij

    Self-healing concrete: "This calcite bonds to the concrete and starts to build up a mineral structure that spans the crack, stopping further growth of the crack and sealing it up."

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