The word ‘robot’ conjures up an array of images for most people, from R2D2 and C3PO of Star Wars fame, to the hyper-masculine Arnold Schwarzenegger in the Terminator series or the Rover Sojourner, which explored the Martian landscape as part of the Mars Pathfinder mission.
Some people also have the notion that robots will soon have autonomous thoughts and eventually take over the world. There are others who think that we will soon be at the mercy of these robots, due to our growing dependability on them to perform our daily tasks. These notions occur entirely due to the lack of awareness. A robot is any machine capable of carrying out a complex series of actions automatically, especially one that is programmable by a computer.
It can be a simple arm (used in surgery), a spy drone, or even the automated guided vehicles that are used to transport materials around in a factory. Everything falls under the category termed ‘robotics’. Also, a robot doesn’t necessarily have to be in a humanoid form.
From a simple mechanical bird to robot soldiers, robotics has a come a very long way. Let us look at how the machines that basically form the backbone of today’s world came into existence and evolved over the years.
In 1921, Karel Capek, a Czech playwright, came up with an intelligent, artificially created person, which he called “robot”. Although the term came into existence less than a century ago, robots were actually in use as early as 350 B.C.
In 350 B.C., the Greek mathematician Archytas built a mechanical bird termed ‘The Pigeon’, which was propelled with the help of steam.
One of the first instances of robotics used in day-to-day life was the use of Egyptian water clocks, where human figurines were used to strike the hour bells. It measured time as a result of the force of water falling through it at a constant rate.
In the 14th century, Leonardo Da Vinci designed a mechanical man that looked like an armored knight. The mechanisms inside the armored knight were designed to make the knight move as though there were a real person inside.
After about three centuries, a French inventor named Jacques de Vaucanson began building automata (a moving mechanical device made in imitation of a human being). He built three of them in total. The first was a flute player that could play twelve songs, followed by the second one, which played a flute and a drum or tambourine, and the third automata, which was a duck that moved, quacked, flapped its wings and even ate and digested food. It had a very clever design, considering that this was still the 17th century!
The first modern robot was made in 1810. It was a soldier with an automatic bellows (a device with an air bag that emits a stream of air when squeezed together with two handles, used for blowing air into a fire) that could blow a trumpet. The creator was Friedrich Kauffman from Dresden, Germany,
In the year 1898, Nikola Tesla built a remote-controlled robot boat and demonstrated it at Madison Square Garden.
In 1932, the first true robot toy was produced in Japan. Named ‘Lilliput’, it was a wind-up toy that walked. Lilliput was made from tinplate and stood just 15 cm tall.
The year 1936 brought a major revolution in mathematics. This was the year when Alan Turing famously invented the concept of a theoretical computer called the Turing Machine.
With the arrival of programmable computers in the 1940s, the first real robots began to take shape. The earliest robots as we know them today were created by George Devol in the 1950s. He invented and patented a reprogrammable manipulator (basically a robot) called Unimate. Unfortunately, he couldn’t sell it! In the 1960s, Joseph Engleberger bought the Unimate patent and modified it into an industrial robot, selling it under the label ‘Unimation’. It was a programmable robotic arm that was installed seven years later, on the assembly line of New Jersey General Motors. This arm performed dangerous and repetitive tasks on the assembly line. For his efforts and success, Engleberger is known in the industry as “the Father of Robotics”.
In 1966, the Stanford Research Institute created Shakey, the first general-purpose mobile robot able to reason concerning its own actions. While other robots would have to be instructed on each individual step in order to complete a larger task, Shakey could analyze commands and break them down into basic chunks by itself. These actions involved traveling from one location to another, turning light switches on and off, opening and closing the doors, climbing up and down from rigid objects, and pushing movable objects around.
Three years later, Victor Scheinman, a Mechanical Engineering student working in the Stanford Artificial Intelligence Lab (SAIL) created the Stanford Arm. The arm’s design became a standard for the design of future robot arms. In fact, it is still being used today.
In 1974, he opened his own company that produced the Silver Arm. This arm was capable of assembling small parts together using touch sensors.
In 1985, the first robot, called Puma350, was used in the medical field for surgery. Its purpose was to orient a needle for a brain biopsy under computerized tomography guidance. It was discontinued later due to safety issues.
Later, in 1992, Dr. John Adler came up with the concept of CyberKnife, a robot that images a patient with X-rays to look for tumors in the body.
1997 was perhaps one of the most important years for robotics. It was the year of the Mars Pathfinder mission. The robotic Mars rover Sojourner was released onto Mars’ surface and its job was to transmit data back to Earth from the Martian soil.
In the year 1999, Sony released AIBO, a robotic dog with the ability to learn, entertain and communicate with its owner.
With further advancements in technology, robots started becoming more and more autonomous. In 2002, a batch of SDR-4C robots was introduced, which remembered people’s faces, danced to disco and even sung in harmony.
Soon, inventors started making robots more human-like. In recent years, features like artificial skin tissues, emotions, self-awareness and autonomous thinking have been incorporated in robots. Robothespian is one such machine that is capable of entertaining and communicating with people. It is fully interactive and multilingual.
In 2015, Nadine, the most human-like robot ever made, was created by the Nanyang Technological University. It currently operates as a university receptionist. Scientists are still working on new technology that will provide childcare and offer friendship to lonely elderly people.
Perhaps the biggest achievement in robotics are the robotic suits named HAL (hybrid assistive limb). The HAL reads brain signals and helps people who have mobility problems, making it extremely useful for disabled people and the elderly.
Robots are actually doing more good than harm in terms of improving our quality of life. A few years down the line, just like mobile phones, robots might become an integral part of our lives. The question is…. is that what we really want?