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Posts tagged ‘science’

Wiki: earthquakes

Earthquakes have to do with the movement of tectonic plates. Tectonic plates gradually move independently of one another, but the points where they meet aren’t just constantly in motion alongside each other. Rather, friction holds the edges in place while the pressure builds up and up, until fin­ally it’s released in one large movement of the earth (an earthquake). You can also have …

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Wiki: modified Mercalli intensity scale

This is a scale designed to describe how an earthquake is felt by people (more at the lower end) or how much damage results from it (at the higher end).

  • I. Not felt
  • II. Very weak: felt only by a few people, mainly at upper floors of buildings
  • III. Weak: felt noticeably by people indoors, especially at upper floors of buildings; stationary motor vehicles might rock.
  • IV. Light: felt indoors by …

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Wiki: seismic magnitude

The seismic magnitude describes the overall strength of an earthquake. It is to be distinguished from seismic intensity (measurable on scales like the modified Mercalli intensity scale) which more describes the impact an earthquake has on the ground. The current magnitude scale generally used is called the “moment magnitude scale”. Laypeople (including much of the media) may describe …

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Wiki: wet-bulb temperature

The wet-bulb temperature is the temperature at which a damp cloth wrapped around a lit lightbulb doesn’t dry, apparently – so obvs the temp varies depending on humidity level. So apparently if the temperature passes 28° and the wet bulb doesn’t dry, this is dangerous to be physically active in; if the temperature passes 32° this is dangerous even at rest, and if it passes 35° this is …

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In other news, apparently there’s a malady called Christmas eye(external link) that occurs near Albury-Wodonga in summer, which is when a specific type of bug gets squashed in your eye and squirts a noxious bodily fluid in there causing excruciatingly painful blisters on your cornea. Yikes.

Link: “What cats’ love of boxes and squares can tell us about their visual perception”

Original post found at: https://arstechnica.com/science/2021/05/what-cats-love-of-boxes-and-squares-can-tell-us-about-their-visual-perception/

It is a truth universally acknowledged—at least by those of the feline persuasion—that an empty box on the floor must be in want of a cat. Ditto for laundry baskets, suitcases, sinks, and even cat carriers (when not used as transport to the vet). This behavior is generally attributed to the fact that cats feel safer when squeezed into small spaces, but it might also be able to tell us something about feline visual perception.

a cartoony avatar of Jessica Smith is a left-wing feminist who loves animals, books, gaming, and cooking; she’s also very interested in linguistics, history, technology and society.