
The Engines of Our Ingenuity 1569: Alkahest
Episode: 1569 Alkahest , the universal solvent. Today, we look for the universal solvent.
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The story of technological progress is one of drama and intrigue, sudden insight and plain hard work. Let’s explore technology’s spectacular failures and many magnificent success stories.

Episode: 1569 Alkahest , the universal solvent. Today, we look for the universal solvent.

Episode: 1568 Lord Kelvin's miscalculation of the age of the earth. Today, a Victorian scientist miscalculates the age of the earth.

Episode: 2591 Instant runoff voting and the Academy Awards. Today, what's best?

Episode: 2885 Very Large Numbers. Today, let's talk about very large numbers.

Episode: 3372 Rhetoric, Objectivity, and Gaslighting. Today, we flip the switch on “gaslight.”

Episode: 3371 The creative work and relative anonymity of Mary Coulter, and her Native American architecturally themed designs. Today, meet...

Episode: 1567 Christopher Wren: a great architect first learns medicine. Today, an unexpected student of medicine.

Episode: 1566 Glottochronology: In which language decays like carbon-14. Today, a new word for you: glottochronology .

Episode: 1565 Using the hysplex to start an ancient Greek foot race. Today, we learn how to start a foot race.

Episode: 2588 Synthetic Sound Waves. Today, the sound of music.

Episode: 3370 A Look at Poetry and the Importance of Rhythmic Metre. Today, the rhythm of poetry.

Episode: 3369 Small cells and microorganism that behave like living factories. Today, tiny living factories.

Episode: 3368 The possibility that there exists a reality out of reach of any human science. Today, we wonder what’s real.

Episode: 1564 The Second Law of Thermodynamics and time's arrow. Today, we see why time goes only from then to now.

Episode: 1562 Guido da Vigevano uses war as an excuse to invent. Today, a medieval inventor goes to war -- almost.

Episode: 1561 'Hustling Hinkler, Up in the Sky' - an early Australian flier leaves his mark. Today, an odd hero of early aviation.

Episode: 2585 The technology of timing races. Today, who won that race?

Episode: 2942 Hilton Hotels in Space. Today, we reach for the stars.

Episode: 2638 Artificial Gravity for Human Spaceflight; What is Gained, What is Lost. Today, astronaut Michael Barratt discusses the pros an...

Episode: 1560 In which we 'look' at the world through a narrow slit. Today, we look at the world through a narrow slit.

Episode: 1559 Music-making: the first technology. Today, we look for the oldest technology.

Episode: 1558 Mastered by nature, we o'ercome by art - then as now. Today, an old debate in a new arena.

Episode: 1556 In which we run out of manual arts teachers for our schools. Today, let's work with our hands.

Episode: 2583 Children and their Goals. Today, president, pope, astronaut.

Episode: 3253 Teaching Computers to Think. Today, Teaching a Computer.

Episode: 3166 Spoonerisms and Their Unwilling Namesake. Today, spooning in speakerisms.

Episode: 1554 In which new science yields new instruments: 1500 to 1950. Today, a new class of machines and new viewpoint.

Episode: 1553 Galileo, Torricelli, von Guericke, and the idea of a vacuum. Today, we invent vacuum.

Episode: 1552 The ocean - the wild card in global warming. Today, we wonder how things are really heating up.

Episode: 1551 In which Gary Larson tells us the piano was invented earlier than we thought. oday, a lesson in invention from the Far Side .

Episode: 2578 The Wonders of Water Towers. Today, water flows downhill.

Episode: 2864 The theorem of Reverend Bayes. Today, let's talk about uncertainty and an 18th century Presbyterian minister.

Episode: 3247 Proust, Turing, and the Measure of Humanity. Today, we go from Turing to Proust.

Episode: 1550 Making a book of The Engines of Our Ingenuity. Today, we wonder how to make a book.

Episode: 1549 Compte Rendus , 1836: a snapshot of science at high tide. Today, we read modern science when it was first being made.

Episode: 1547 Mystery at the threshhold of the Twentieth Century. Today, let's reclaim mystery.

Episode: 1546 Max Jakob: a breath of fresh air in a new land. Today, a great engineer escapes the Holocaust.

Episode: 2576 Are screw caps good for wine? Today, a turn of the screw.

Episode: 2687 Getting to know the organisms that live on and in the human body. Today, what lives within us.

Episode: 3367 In which Scientific American Magazine gets wrong, the airflow during singing. Today, Scientific American gets it wrong.

Episode: 3366 The throw-away bottle cap: More than it seems to be. Today, we invent the bottle cap.

Episode: 1545 The English and 18th century ballooning. Today, we ride the first hot-air balloons in England.

Episode: 1544 An operetta about electric lights, written before Edison's light bulb. Today, an electric-light opera.

Episode: 1543 Archimedes' pump, rediscovered by Ceredi, heralds the new science. Today, meet the person who reinvented Archimedes' pump.

Episode: 2575 The illustrious history of Prime Numbers. Today, some numbers for the ages.

Episode: 3228 Designing safe computer controls. Today, flying by computer.

Episode: 3365 A 1906 set of Shop Notes offers a lesson in technological change. Today, a manual tells us more than it means to.

Episode: 1542 In which Francis Bacon pushes a strict Aristotelian Agenda. Today, science tries to find its way.

Episode: 1541 Do 'Horseshoe Nails' really alter human history? Today, we ask if horseshoe nails are real.

Episode: 1540 The Korean Turtle Boat - the first ironclad. Today, we meet a turtle with an iron shell.