Prismatic coal hole cover on Hope Street in Glasgow. These were were commonly used allow natural light into the otherwise pitch black cellars. Only a few of the original prisms remain in this particular example.

#Light #Prisms #WinterSun #Reminders

Every afternoon, if it's sunny, the cut-glass paperweight on my kitchen windowsill gives us this...

Prismatic coal hole cover on Hope Street in Glasgow. Coal holes in the street allowed deliveries to coal cellars without having to carry the coal through a building. Prismatic coal hole covers were commonly used allow natural light into the otherwise pitch black cellars. Only a few of the original prisms remain in this particular example.

What is this contraption attached to a telephone pole in South Jersey? There were two at 90 degrees around the pole from each other.

Is this a survey prism? Is it in active use? If these are reflective, are they on the pole to prevent people from hitting it? Or is it just decoration? Why is it here?

https://geomatics.cc/wiki/survey-prisms

Let's make #binoculars with really #accessible #alignment screws, so that when you inevitably #drop them, you can tweak the #prisms back into alignment without a fight.

Currently, the adjustment screws are usually hidden, tiny, and thread-locked. They can break easily if you try forcing them.

My ideal binoculars would have these presets as big lockable user controls.

Delighted to announce the addition of a sample of 1,425 manuscripts (MS descriptions with complete #IIIF surrogates) from the #Medieval Manuscripts in Oxford Libraries corpus to the #DSE platform #PRISMS.

https://www.prisms.digital/collection/medieval-mss

Realgar - #sulfide class #mineral As4S4.

*#Crystals in the form of monoclinic #syngonia, #prisms, #needles.
* The #color is #red.
* Formed during #hydrothermal processes. It is found #deep in the #earth.
* Found in lead, #silver, #gold ore veins, #volcanic #craters, fumaroles, hot spring deposits along.
* It used for #paint.
* Disintegrates from light and moisture. Long-term (not a one-day process).

One of the aims of the open #KnowledgeBase and #DSE platform #PRISMS was to make progress towards Peter Shillingsburg's "electronic infrastructure for script acts" (2006). We believe we're halfway there...

https://www.prisms.digital/

Prismatic coal hole cover on Hope Street in Glasgow. Coal holes in the street allowed deliveries to coal cellars without having to carry the coal through a building. Prismatic covers were commonly used allow natural light into the otherwise pitch black coal cellars. Only a few of the original prisms remain in this particular example

Many thanks to everyone who voted for #PRISMS @dhawards 2022!

You can stay in touch and find out about future plans and updates here, at https://home.social/@Huber_Digital, at https://www.youtube.com/@Huber_Digital and on https://www.prisms.digital/

Welcome to this mesmerizing loop featuring 40 icosagonal prisms! In this video, you'll be taken on a visual journey through a stunning arrangement of 40 icosagonal prisms, each with 22 faces and 40 vertices.

As the loop progresses, you'll witness the intricate details of these prisms, from their sharp angles to their smooth surfaces. The geometric #symmetry of the icosagonal prism is truly a sight to behold, and this #loop showcases that beauty in full.

Whether you're a math enthusiast, an artist, or just someone who appreciates the #beauty of #geometric #shapes, this loop is sure to captivate you. So sit back, relax, and enjoy this stunning display of 40 icosagonal #prisms in motion.

I guess there are people who find #prisms objectionable now.