Bones are very important for our body which gives support and shape to our body. Imagine your body without bones it will be like a bag of flesh. Bones have the protective functions. They protect inner organs like brain is protected by the skull and […]
Who invented the Hovercraft?
A hovercraft (air-cushion vehicle, ACV) is a vehicle capable of traversing over surfaces, and is supported by a high-pressure, slow moving air cushion, which gets ejected against the surface lying below. Though the principles behind hovercrafts and hovering were first mentioned by Emanuel Swedenborg in […]
How are snooker balls made?
Snooker balls are colored balls that are used to play cue games of snooker. Previous to the development of the modern snooker balls, the material used was wood and ivory. But these materials were not fit enough and something alternate had to be discovered. The […]
Why do people snore?
Snoring occurs mainly due to the soft palate at the back roof of mouth which closes the nasal passage while swallowing or uvula; a dangling like thing comes in the way of air. During sleep they get relaxed during night making the passage narrower for […]
What causes hangovers?
Headache, fatigue, shakes; nausea, all the symptoms at the same time is a hangover. The main cause of the hangover is having alcoholic beverages. These beverages contain ethanol. Liver enzymes help the liver to break ethanol, but too much of alcohol does not allow the […]
How are ‘stealth airplanes’ made stealthy?
The special design of the stealth aircraft makes the airplanes less detectable audibly, visually, thermally and thus on radars. This does not mean that the technology makes them invisible, but they are far less prone to identification than the conventional airplanes. Stealth technology has a […]
Who invented the DVD?
Who invented the DVD? DVD also known as Digital Video Disk was invented in 1995 and the invention is a group effort of companies the following companies namely; Sony, Philips, Toshiba and Time Warner. Many other company representatives have also contributed in different working groups […]
Who invented Global Positioning System?
The global positioning system better known as the GPS was invented by Roger L Easton. GPS is used to provide reliable information on time and location at all times. The invention of the GPS has created a great revolution in the way we live. Roger […]
Why do people blush?
Why do we blush? Scientists are not able to find the definite answer about this but some theories about this are very common. The system that activates our “fight-or-flight†response, embarrassment and blushing is called the sympathetic nervous system. In this system an action in […]
How to avoid acne?
Acne vulgaris is also known as acne. It is a very common problem among the teenagers and young people. Acne can appear anywhere on our body but mostly on the face and the back. Whiteheads and blackheads are the symptoms of acne. Acne can be […]