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Ignite change and curiosity, with Houston Public Media

Tag: etymology

Engines Podcast

Engines of Our Ingenuity 3269: Cyanotype

Dr. John Lienhard

Posted on May 23, 2022 · Episode: 3269 Blueprint: Once a thing, now only a metaphor. Today, a thing lingers as a metaphor.

Tags blueprint botanist botany Carolyn Herschel cyan cyanotype dark blue diazo drafting draftsman drawing board etymology John Herschel kyanos language metaphor metaphorical photography T-Square tracing boys William Herschel

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Engines Podcast

Engines of Our Ingenuity 1065: Alphabet

Dr. John Lienhard

Posted on November 12, 2023 · Episode: 1065 Inventing the alphabet — sowing progress and chaos. Today, we invent the alphabet — and we sow seeds of discord.

Tags cuneiform hieroglyphics jaynes language linguistics phoenicians speech stoichiometry sumerian writing

Engines Podcast

Engines of Our Ingenuity 2991: Writing in Colors

Richard Willson

Posted on October 31, 2023 · Episode: 2991 Tswett and the Development of Chromatography. Today, we write in colors.

Tags Adsorption analysis botany Chlorophyll Column Filter Paper Pigments plants Purification russia Separation Solvents Warsaw

Engines Podcast

Engines of Our Ingenuity 2877: What Bees See

Dr. John Lienhard

Posted on September 17, 2023 · Episode: 2877 What do bees and other creatures see with their unimaginable eyes? Today, technology, engineering, and art.

Tags bees biology birds botany Cats compound eyes dogs eco-system entymology flies flowers insect flight lantana ocelli ocellus orb weaver spiders pollen scientific method sense data sense perception senses ultra-violet visible light spectrum wasps Who Killed Cock Robin?

Engines Podcast

Engines of Our Ingenuity 2781: Water Seeks It’s Own Level

Dr. John Lienhard

Posted on August 20, 2023 · Episode: 2781 While water seeks its own level, it sometimes fools us. Today, water’s own level.

Tags aristotle bayous canal locks detention basins ecology flooding gravity hydrostatics metaphor Mystery House Napoleon Bonaparte nature preserves optical illusions perpetual motion machines rain retention basins storm sewers Suez Canal Vortex House Water seeks its own level

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