Buzz
We often overlook the inventions from the past, taking them for granted. However, the creators of these innovations are frequently forgotten. Once you dive into the stories of how they crafted their groundbreaking inventions, you’ll gain a deeper appreciation for the challenges they faced in bringing them to life.
There is so much to learn from these inventors—from their perseverance and creativity to the sacrifices they made. They achieved remarkable things along the way. In today’s world, it’s important to remember how much progress we’ve made thanks to their contributions.
10. Christopher Cockerell - The Hovercraft
Christopher Cockerell became fascinated with the concept of the hovercraft after scientists uncovered a basic prototype that could stay afloat using a cushion of air. The issue, however, was that the air rapidly escaped from the sides.
Cockerell proved that an “air wall” could address this issue by containing the air. He performed an experiment where he placed a cat food can inside a coffee can and pumped air from a vacuum cleaner between the two containers.
In 1955, he received a patent for his invention. Four years later, he successfully tested his hovercraft as it traveled along the South Coast of England. His creation has been particularly valuable in countries with poorly maintained roads and railways, providing people with the ability to travel across varied landscapes like rivers and deserts.
9. Frank Whittle - The Jet Engine
While attending the Royal Air Force College, Frank Whittle penned a paper titled “Future Developments in Aircraft Design.” In it, he outlined how airplanes would soon be capable of reaching speeds over 800 kilometers per hour (500 mph).
These aircraft would be powered by jet engines instead of the traditional propellers. Whittle explained how his engine design would burn inexpensive oil, producing gases that would spin the turbine blades and propel the plane forward with the force of the gases.
Unfortunately, the Air Ministry wasn’t initially interested in his concept. In 1936, while studying at Cambridge University, he founded a company named Power Jets Ltd. He also filed patents for his turbojet engine and turbofan. His engine was first tested on the ground on April 12, 1937, and by May 1941, it was successfully installed in the Gloster E28/39 aircraft and flown without issues.
Whittle demonstrated that his jet engine design was far more efficient than the engines used at the time. His invention remains the basis for the engines powering most airplanes today.
8. Peter Durand - The Tin Can
Peter Durand was granted the first patent for the tin can, though it was Nicholas Appert from France who first pioneered the preservation of food by storing it in glass jars. He would then cook the jars for several hours to sterilize the contents.
Durand used a similar technique for his tin cans. He placed food inside a container and sealed it. Then, he submerged the container in cold water and gradually heated it to a boil. Finally, he slightly opened the lid before sealing it again.
The inspiration for his invention came from Philippe de Girard, another Frenchman. Girard shared his idea with Durand, enlisting him to help with the patent process. However, it was Durand's name alone that appeared on the patent, which was issued by King George III in 1810.
7. Charles Babbage - The Father of the Computer
While studying mathematics at Cambridge University, Charles Babbage was focused on creating a table that could compute logarithms to ensure accurate mathematical calculations. This pursuit eventually led him toward the idea of building his own calculating machine.
In the 1820s, he introduced the “Difference Engine.” A working prototype was constructed to demonstrate its function. He also had ambitious plans for a second version, the “Difference Engine 2.” His determination led him to persuade the British government to invest £17,000 in the project—an immense sum at the time—and he personally contributed £6,000 of his own funds.
Unfortunately, the project was never finished. Babbage’s ideas were far ahead of their time, and the technology needed to realize his vision wouldn’t be developed for many more years. Despite this, he is often called the “grandfather of the modern computer.”
6. Heinrich Hertz - Radar
Heinrich Hertz, a German physicist, confirmed the existence of electromagnetism, providing experimental support for James Clerk Maxwell’s theory from 1865. Hertz carried out groundbreaking research in his laboratory while serving as a physics instructor at Karlsruhe Polytechnic between 1885 and 1889.
In his experiments, Hertz generated electromagnetic waves and measured their wavelength and speed. He demonstrated that electromagnetic waves shared the same properties as light and heat waves, showing similar behavior in terms of vibration and reflection.
In 1888, Hertz conducted a pivotal experiment using an electrical circuit to create a spark across a gap between two metal rods. This generated electric pulses that traveled through a distant circuit. This achievement made him the first person to successfully transmit and receive radio waves.
Tragically, Hertz passed away at the young age of 36, just before Guglielmo Marconi demonstrated how radio waves could be used to transmit messages over long distances.
5. John Logie Baird - Television
John Logie Baird began his career as an engineer, but he grew so dissatisfied with his work that he turned to inventing. His early attempts failed, leaving him penniless at 35. However, in 1923, he set out to create a machine that could transmit images and broadcast sound via radio. He tested the device by sending basic images wirelessly to a receiver just a few feet away.
In 1924, Baird succeeded in transmitting outlined images, and by 1925, he was able to broadcast recognizable human faces. The following year, he demonstrated his televised moving objects at the Royal Institution in London, marking a significant milestone.
The German post office provided the resources for Baird to establish a television service in 1929. However, in 1936, when the British Broadcasting Corporation (BBC) introduced its own television service, Baird's technology faced stiff competition from Marconi’s Electric and Musical Industries. The BBC ultimately chose Marconi’s system over Baird’s in 1937.
Nevertheless, without Baird’s groundbreaking invention, the television we know and love today might not even exist.
4. Guglielmo Marconi - Radio
Guglielmo Marconi, an Italian inventor, drew inspiration from the work of Heinrich Hertz and James Clerk Maxwell, leading him to begin his own experiments. In 1894, he started testing on his father’s estate near Bologna, and by 1895, he successfully transmitted radio signals over a distance of 1.6 kilometers (1 mile).
Using basic equipment like an induction coil, a Morse key, and a coherer to detect radio waves, Marconi faced little support from the Italian government for his work. Undeterred, he moved to England in 1896 to continue his research.
In England, Marconi met Sir William Preece, the chief engineer for the post office. However, it’s said that this only tells part of the story, as Marconi had originally planned to approach the Secretary of State for War. He had even sent them a letter outlining his idea to use radio waves for controlling torpedoes, not just for communication.
Marconi’s breakthrough came in 1901, when he successfully received radio signals in St. John’s, Newfoundland, from Poldhu, Cornwall, England. This marked the first transatlantic radio transmission and laid the foundation for the radio broadcasting services we rely on today.
3. Thomas Newcomen - First Practical Steam Engine
Thomas Newcomen, an engineer and inventor, created the first practical steam engine based on James Watt’s earlier design. Originally an ironmonger in Dartmouth, Newcomen was concerned with the high costs of using horses to pump water out of tin mines.
For over ten years, Newcomen and his assistant, John Calley, worked tirelessly on refining a steam pump. Their creation ultimately surpassed a previous pump designed by Thomas Savery, whose engine struggled to pump water without frequent breakdowns.
Newcomen’s pump functioned by using pressure to force the piston downward. The steam’s condensation formed a vacuum inside the cylinder, and the alternating valves allowed steam and water to move through the system, creating a continuous cycle.
This engine effectively solved the issue of pumping water without frequent failures. Consequently, Newcomen’s design was widely replicated following the invention of James Watt’s engine.
2. Gottfried Wilhelm Leibniz - Calculus
Gottfried Wilhelm Leibniz is often acknowledged as the inventor of differential and integral calculus. However, other mathematicians, including Isaac Newton, have also claimed credit for the development of this field.
To fund his studies, Leibniz created a calculating machine, which he presented to the Royal Society during his visit to London in 1673. By 1675, he had laid the foundation for the principles of differential and integral calculus.
In the present day, calculus plays a critical role in tracking objects like space shuttles and predicting events such as whether a dam could potentially fail due to excessive water pressure.
With the advent of computers, solving calculus problems has become much easier compared to the manual methods used in the 17th century. Additionally, calculus serves as a crucial starting point for anyone pursuing a career in science.
1. Trevor Baylis - Wind-Up Radio
Trevor Baylis, an English inventor, began working on a prototype for the wind-up radio after watching a 1991 TV program about the spread of AIDS in Africa. He thought to himself, "If wind-up record players exist, why not wind-up radios?" He employed a clockwork motor powered by a coiled-up spring, similar to the mechanism used in clocks.
His first prototype lasted for about 14 minutes. Following this success, he was invited to appear on the TV program Tomorrow’s World in 1994. In 1995, he founded BayGen Power Industries in Cape Town, South Africa, where disabled workers were hired to assemble wind-up radios.
In 1997, a new version of the radio was developed to cater to the Western market. This model was lighter, more portable, and only required 20 seconds of winding to run for an hour. Additionally, it was equipped with a solar panel to function autonomously using sunlight.
Baylis received numerous awards for his invention and made a significant impact, improving the lives of many people along the way.
