Inhalers are portable handheld devices that deliver medication via inhalation directly to the lungs. There are two kinds of inhalers: Metered Dose Inhalers (MDIs), which deliver medicine in a mist or spray and Dry Powder Inhalers (DPIs), which deliver the medicine in a fine powder. Inhalers were developed in the 1778 by an English physician […]
In the early 1990s, people were known of induction cooker but it’s definitely not a new technology; it had been widely used for so long. Induction cooker was introduced to the crowd in Chicago in 1933 and also in the mid of 1950. To assure its security a newspaper had been kept in between the
Chapter 7 At eight in the morning a ray of daylight came to wake us up. The thousand shining surfaces of lava on the walls received it on its passage, and scattered it like a shower of sparks. There was light enough to distinguish surrounding objects. “Well, Axel, what do you say to it?” cried
The hula hoop is known to be an ancient invention, and there is no company that can claim to invent or patent the first hula hoop. It is known that the Greeks used the hula hoop as a form of exercise. In ancient time, the hula hoop was made from varied kinds of materials such
Joseph-Michel Montgolfier and Jacques-Etienne Montgolfier born in Annonay, France, invented the first practical hot-air balloon. They demons-trated it publically on 4 June, 1783, at Annonay marketplace. They prepared a large spherical bag and filled it with heated air by burning wool and straw under the basket hung underneath the bag. The bag rose about 3,000
Chapter 6 Supper was rapidly devoured, and the little company housed themselves as best they could. The bed was hard, the shelter not very substantial, and our position an anxious one, at five thousand feet above the sea level. Yet I slept particularly well; it was one of the best nights I had ever had,
Once, a couple of Japan, after spending many years without any child started musing that why God brought this catastrophe to them. They so intensely longed of children that even a little inch-sized child could dispense merriment in their life. And they were blessed with a little-sized son as they wished, he was named Issun
The basic idea of a helicopter flight through rotating horizontal wings or ‘rotors’, goes back at least 1,500 years, through a simple invention known as the ‘Chinese top’ that still survives today in different forms. That toy eventually made its way from China to Europe, where it appeared in paintings dating as far back as
The invention of headphones was made in order to amplify sound. Headphones were invented by Nathaniel Baldwin in his kitchen, the exact year of his invention unknown. In 1910 when the US Navy needed to amplify sound, Nathaniel sold the headphones to them. The initial headphones by Brandes had no damping; hence were sensitive and
The first handy cam was discovered in the year 1982 by Sony Company and the name of the product was Beta cam. These cameras are designed for broadcasting the television at large and heavy on excessive pedestal, and can be easily seen in separate rooms as well. As the craze of science and technology increased
In every country, hand stamps had their own special evolution. The oldest hand stamp comes from Venice and dates back to 1435. This hand stamp was not printed in ink on the cover, but was embossed on the letter. Later on, Sir Rowland Hill invented postage hand stamp in 1840. In ancient times, the records
First hair brush was invented by Lyda D. Newman around 1898. It is used in hair caring and styling. The reason behind this invention is that to offer a new and improved hair brush carrying good quality, which is simple and able to last a long in interpretation or structure. As long as people have
Guitars were originally developed as other instruments, and as such, there is no date that can be credited to the invention of the guitar. Initially, instruments like the tantar and the sitar were used in India, and the guitar is known to get its name from the sitar. Also, some odd 3300 years ago, it
Long ago, the lion was the only animal with a tail. One day, he decided that each animal should have a tail like him. So, he got tails made for all the animals in his kingdom. When he found all the task done, all his subjects were summoned to his cave to their respective tails.
The Guillotine was invented by a Frenchman named Dr. Joseph-Ignace Guillotin in the 1780s. The guillotine was invented to be a symbol of democracy and equality, though the public view changed soon after. Beheading machines were usually reserved for the nobility, but with this invention executions would take place in the same fashion for whoever,