How was bubble wrap invented by mistake?

Did you know that Bubble Wrap which we irresistibly squeeze and pop was an accidental invention? In 1957, engineer Alfred Fielding and chemist Marc Chavannes were trying to create a textured wallpaper. They sealed two plastic shower curtains together and what they got was a sheet of film with air-filled bumps across. Though initially disappointed, they quickly turned around their failure. And their creation went on to revolutionise the packaging industry, protecting thousands of fragile products transported worldwide.

To make the original version of Bubble Wrap, Fielding and Chavannes used two shower curtains and sealed them together with air bubbles in between. According to Joey Green in his book “The Bubble Wrap Book”, the two inventors set out to develop a machine that created a type of plastic wallpaper with a paper backing. But their machine ended up just creating sheets of plastic with air bubbles in between. Unsurprisingly, their plastic wallpaper wasn’t a hit, and it didn’t sell well. But luckily, they didn’t stop there.

After its failed introduction as wallpaper, Fielding and Chavannes set out to market Bubble Wrap as a material for greenhouse insulation. Although Bubble Wrap does have some insulating properties, it’s simply not as effective at insulating as other materials. That’s why it was no surprise that this idea also didn’t take off. Yet again, Bubble Wrap failed to ignite the market and get noticed by people.

Since then, Bubble Wrap continued to grow and a become a fundamental tool in the shipping industry. Today, Bubble Wrap is one of the most popular materials for packing and shipping goods, becoming as essential as cardboard boxes and Styrofoam. Bubble Wrap now comes in a variety of styles and designs, and it consistently earns Sealed Air (its manufacturer and trademark holder) hundreds of millions of dollars every year. Not bad for something that started out as wallpaper.

Credit : Box Factory

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Who first invented the Rocket?

The First Rocket

On March 16, 1926, a strange metal contraption went roaring up into the sky. It climbed until it was only a speck. The world’s first liquid-fuel rocket had just been launched.

That rocket was built by Dr. Robert H. Goddard, an American scientist. And he kept building better rockets through the 1920’s and 1930’s.

Another great rocket was invented by a German engineer named Wernher von Braun. Von Braun’s team built the V-2 guided missile. Later von Braun went to the U.S.A. His team built the rocket that launched the first successful U.S. satellite.

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When and how the fist steam engines were built?

The invention of the steam engine during the eighteenth century had a fundamental effect on man’s progress. Some earlier forms of this machine had appeared during the previous century. The most famous were those of papin whose work provided a great stimulus for research into steam.

Papin built a boat with steam operated paddles, but builders of sailing boats were hostile to this new craft and papin could not make much progress with it. However, he had proved what a powerful force steam could be in locomotion. Thomas newcomen built a steam engine in 1705. It began to be used for pumping water out of mines about six years later, and by 1725 the engine was widely used in collieries. It continued in use for many years although it was not very efficient and worked slowly. It was James watt (1736-1819) who examined all the previous efforts and perfected them into a steam engine that worked fast and efficiently. For this engine watt invented a steam condenser that was separate from the cylinder which worked the piston.

The steam engine had a sensational success and proved itself enormously useful, especially in factories where it replaced machines that had previously been worked by water or animal power. It was eventually used as a locomotive to pull wagons.


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By whom the electric light bulb was born and how?

Thomas Edison had discovered in his experiments that there were certain bodies through which electric power flowed more easily. He called these good conductors and other bodies that resisted the flow of electric power he called bad conductors. When electricity tried to travel along a bad conductor the latter would resist so much that it glowed until became white-hot.

A carbon filament, for example, gave out a good deal of light; but the light did not last very long because the carbon would soon burn itself up as it was in contact with the oxygen in the air.

Edison then carried out an experiment inside a glass bulb from which he had removed all the air. This time the light of the glowing filament lasted much longer and the fist electric light bulb was born.

Carbon filaments have now been replaced by tungsten wire as its high melting point, low rate of evaporation and low electrical consumption make it most suitable for use in light bulbs. A further improvement has been the introduction of an inert gas in to the bulb. This was at first nitrogen but is now a mixture of 88 per cent argon and 12 per cent nitrogen.


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What are water trucks used for?

Water trucks are a vital part of mining and construction operations. Dust control, compaction, even fire prevention are among the uses of these powerful machines. Water trucks are different from regular trucks in that they have special tank specifications, custom chassis design and mounting apparatuses, and associated pumping equipment.

Water trucks come in a range of sizes and designs, with larger trucks able to haul as much as 36,000L. Some are even specially designed for mining applications and come with off-road tyres, safety equipment and are reinforced for stability over rugged terrain.

The spraying and filling capabilities also vary from truck to truck, depending on the purpose. For starters, filler pipes are typically mounted on the truck’s near side or via an opening on top of the tank. As for spaying capabilities, spray nozzles can be situated on the front, side and/or rear of the truck, and are typically controlled from inside the driver’s cab. There are also drip bars, hose reels, water cannons and more.


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