The World War I had come to an end, and due to the boom in the consumer-goods industry, new products were available to Americans. The period was also a time of inventions and discoveries, and many new gadgets and appliances came into being in this decade. The 1920s was truly a decade of inventions and technological advancement. The number of inventions made in this decade is a testimony to the effort of scientists and inventors of that era. Besides creating new products, inventors also put in consistent efforts to better the existing technology, most notable being the advancement made in the field of automobile engine. Henry Ford's Model T, launched in 1920, had made every American dream about owning a car, and this hysteria gave a fillip to the efforts of scientists involved in improving the performance of the internal combustion engine. A number of patents were registered in the 1920s, and in the year 1925, a Swedish engineer, Jonas Hesselman invented a spark-ignition engine that worked on direct gasoline injection. Advancements were also made in the field of consumer-appliances. In 1926, John Logie Baird gave the first demonstration of televised moving images, which provided the foundation for the invention of all-electronic-television. Numerous research works were started in the 1920s, which helped in the creation of new technology in the later decades. Besides the advancement in science and technology, the decade of 1920s is also remembered for the effect it had on the popular culture through films, art, and literature.