Tom Clohosy Cole  -  http://www.tomclohosycole.co.uk  -  https://dribbble.com/tomclohosycole  -

no offense but all the pictures of the eclipse i've seen today are really boring here are the ones my astrophotographer boyfriend took

11/19/21

Fata Morgna

A Superior Mirage that comes from the Italian term named after the Arthurian sorceress Morgan le Fay, from a belief that these mirages, often seen in the Strait of Messina, were fairy castles in the air or false land created by her witchcraft to lure sailors to their deaths. It’s also believed that this illusion caused the myth of The Flying Dutchman to emerge.

“I’m not afraid of death, but I’m in no hurry to die. I have so much I want to do first.”

And he did so much. He became an evershining star for humankind to look up to. Rest in peace.

Time And Space

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Don’t try this at home!

I talked about the interesting structure of graphite (aka pencil lead) in our latest video:

But I didn’t have time to touch on one of the fascinating side effects of this structure - graphite’s conductivity. A single, two-dimensional sheet of graphite (known as graphene) is the most conductive material we know about. Diamond is among the least conductive materials we know about.

Impure graphite - like the stuff we find in pencils - is somewhere in between. It’s more conductive than sea water and less conductive than steel. As free electrons flow through it, it lights up like a filament and puts out a lot of heat.

Some risk-taking YouTubers (MausolfB Education and ElectroBoom) demonstrated this property so you don’t have to.

Diamond photo credit: Macroscopic Solutions, Graphite photo credit: DerHexer

The north face of Mt St Helens collapses at 8:32 a.m. on Sunday, May 18, 1980, creating the largest landslide ever recorded and signalling the start of a VEI 5 eruption, considered the most disastrous in US history.

This is Alexandrite, it’s also called “emerald by day, ruby by night”

It changes colour based on whether the light source is from the sun or from a candle.

It does this because Alexandrite strongly absorbs yellow light due to chromium ions in its crystal structure, leaving the other colours behind. Light from the Sun emits all colours, but it peaks in the green, and our eyes are most sensitive to green, so in Sunlight Alexandrite is green.

Incandescent lights are things like candles and filament light bulbs. They also emit all colours of light, but they peak far, far into the red, so there’s not nearly as much green or blue, so under those, Alexandrite is red. 

Gemstones are awesome.