Before transmitting the first television image, inventor John Logie Baird tested his equipment on a ventriloquist dummy head named Stookie Bill.

This test represents the first time light travels entirely through an observatory's optical system and reaches its detectors, producing an image. Although the telescope's warped mirror was not discovered and announced until a month after first light, the issue was not responsible for the simplicity of the first light image.

Discovered by Thomas Edison, vacuum tubes allow electrical currents to travel through empty space. Later modified into a diode—keeping current flowing in only one direction—vacuum tubes allowed electronics to turn alternating current into direct current.

Gynecologist Patrick Steptoe and his collaborator Robert Edwards, a biologist, attempted to fertilize a human egg cell in a petri dish 101 times before finally succeeding. This resulted in the birth of Louise Brown—at the time referred to as a "test tube" baby—in 1978, who was born into the spotlight.

As controller of BBC Two, Attenborough wanted the BBC to achieve the first full-color broadcast in Europe and saw Wimbledon as the perfect event to make it happen. Noticing that the white tennis balls used then would stain green and become less visible on color broadcasts as matches progressed, he suggested fluorescent balls, which were eventually adopted.

Beard’s show, cohosted with Julia Child, debuted in 1946. It was invaluable in setting the stage for today’s massive trove of televised and online cooking content.

While James Burke was filming the 1978 docuseries "Connections" at the site of a rocket launch, he pulled off a perfectly-timed gesture without use of a green screen. Some say its the greatest live shot ever in TV history.

The inventor was a pioneer in the early film industry and made his own motion pictures. In 1909, he shot a short film featuring Twain at Stormfield, his property in Connecticut. In it, Twain wears his iconic white suit and drinks tea with his daughters.

In the 1600s, an English doctor transferred the blood from one dog to another via quills. The procedure ended when one of the dogs died. This article details the early days of blood transfusions, which turned toward humans shortly after the 1666 dog experiment and involved putting the blood of a sheep into a human recipient (who reportedly survived the encounter).

The game—which forced contestants who answered questions incorrectly to face "consequences" in the form of wacky stunts—debuted in 1941 with a one-off experimental broadcast on WNBT, then reappeared on NBC in 1950. In 1956, a fresh-faced Bob Barker made his television debut as the show's new host.

This retrospective highlights IFA Berlin’s century of innovation, including the unveiling of the world’s first tape recorder in 1935, the launch of color TV in West Berlin in 1967, and the first public look at HD TV in 1985.

Before he founded his iconic film company, Walt Disney was a young animator in Kansas City, Missouri. After scoring a contract to create animated newsreels for local movie theaters, Disney formed Laugh-O-Gram Studio, where he created innovative animated shorts that set the path for his later work.

Its launch accelerated US investment in the Space Race amid fears the Soviet Union had the technology to launch intercontinental nuclear warheads. It would be followed by Sputnik 2, which carried the first living being—a dog named Laika—to orbit.

The rapid development of integrated circuits—the basis of computing power—in the 1960s catalyzed an industrial shift toward miniature devices, including pocket transistor radios, smaller TVs, and more. This first consumer electronics trade show (with a slate of 117 exhibitors and 17,000 attendees) sought to make everyday electronics accessible and portable. See a timeline of early consumer tech with photos.

Some onlookers thought it was a trick, such a a monkey being inside the boat, rather than mind control or some other metaphysical phenomenon. In reality, Tesla was pioneering radio waves, proving wireless control was possible.

Growing up on the University College, Leicester campus, where his father was principal, Attenborough uncovered specimens such as coiled shells in the rocks and limestone of the surrounding Midlands, which sparked his interest in nature. A week after not landing an interview for a radio job he had applied for, Attenborough was offered a position on "a new thing called television."

George owed his popularity to the in-ring persona he created: a haughty, pretentious Anglophile who couldn't believe he had to stoop to fight his opponents. This 1950s film, taken from the "Wrestling From Hollywood" show that popularized professional wrestling in the US, perfectly illustrates what made this "heel" so compelling.

While Thomas Edison's thin carbon filament design made light bulbs commercially viable, prior contributions, such as Joseph Swan's development of the first successful incandescent filament electric lamp, made its eventual invention possible.

Using a then-state-of-the-art Korona V, rescue member John T. Daniels was tasked with squeezing the device’s rubber bulb the moment the plane left the wooden track on the sand. The camera produced negatives on 5 by 7 sheets of glass.

The British Academy of Film and Television Arts awarded the naturalist for programming in black and white, color, high definition, 3D, and 4K resolution, starting with his first BAFTA in 1961. The VR film "David Attenborough's Great Barrier Reef" also won a BAFTA for London-based Alchemy VR in the Digital Creativity category.

G. Clifford Prout founded the Society for Indecency to Naked Animals, saying that animal nudity was rude and immoral. The campaign continued for years until CBS employees realized Prout was actually a comedian named Buck Henry.

Although Theodore Maiman built the first working laser in 1960, Gordon Gould coined the term earlier. Charles Townes and Arthur Schawlow of Bell Labs filed a patent after Gould came up with the idea and name, but before Gould filed his patent.

The French director was behind 1897's "Gugusse and the Automaton," a silent film that scholars believe features the first appearance of a robot in cinema and one of the earliest films to feature scientific experimentation.

This 1957 news report captures the shock and uncertainty that followed the launch of Sputnik, showing how the first artificial satellite immediately altered global politics, military planning, and public perceptions of technological power.

Walt Disney was mesmerized by Al Jolson's "The Jazz Singer" and the way it used synchronized sound, which synced film with audio. He replicated that effect in “Steamboat Willie," producing the first animated film to do so.

This short film introduced Mickey Mouse, the character who would define the Disney brand, to the world. It might be almost 100 years old, but you'll be surprised at how much humor still holds up.

- Alexander Graham Bell's first words transmitted via telephone (March 10, 1876)

After a 1909 pre-inauguration dinner for incoming President William Howard Taft featured possums and potatoes as the main course, Susie W. Allgood wanted to produce and market an alternative to the Teddy Roosevelt-inspired teddy bear: Billy Possum. Kids thought it looked too much like a rat.