Corcle Time

Some crazy laced agate under the microscope….🔬

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.

Our Amazing Solar System

I’m a huge fan of how rhodochrosite can either look like beautiful pink flowers, like pointy red crystals, like little Barbie-pink orbs, or like meat

[ image description: rhodochrosite in each of the previously described forms, ending with some rhodochrosite stalactite chunks that look like breaded hams and one piece that looks like a raw steak growing out of a rock. ]

One week of spoons. Tune in next week for another week of spoons

Rocket Launch as seen from the space station 

My eyes just aren’t sure how.

These are called RGB dispersion prisms

you can buy them here…

So Google does math for you??

division

square roots

dividing percentages

IT EVEN FOILS

beautiful.

Elaborate Salt Labyrinths by Japanese Artist Motoi Yamamoto

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