What do Olympic rings represent?
The Olympic flag has a white background, with five interlaced rings in the centre: blue, yellow, black, green and red. This design is symbolic; it represents the five continents of the world, united by Olympism, while the six colours are those that appear on all the national flags of the world at the present time.
It was designed by Frenchman who was named Baron Pierre de Coubertin in 1912.
Why do satellites seem to be wrapped in Golden colored Foils? This is referred to in the space community as Multi Layer Insulation (MLI). There are different types of it, the
Why do Apple slices turn brown after being cut? When an apple is cut (or bruised), oxygen is introduced into the injured plant tissue. When oxygen is present in cells, polyphenol oxidase (PPO) enzymes in
Why is there a Leap year every 4th year? A common year has 365 days and a leap year 366 days, with the extra, or intercalary, day designated as February 29.
What is the reason for using Aluminium Foil for packaging of Food? It is a good conductor but a very poor radiator and absorber (the two go together) - because it
What makes Soap create Bubbles ? Soap molecules have two very different ends: one end attracts water (hydrophilic) and the other end repels water (hydrophobic). When soap mixes with water, the
What is Cabin Pressure and Why do we need to maintain it in Aeroplane ? Earth's atmospheric pressure varies with altitude. At the Earth's surface(sea level) , It is measured at
How does E.C.G. Machine work ? E.C.G stands for Electrocardiogram. An Electrocardiogram is a simple, painless test that measures your heart's electrical activity. It's also known as an ECG or EKG.
What do the Letters mean when describing a Car? DX - Deluxe. LX - Luxury. EX - Extra (sometimes seen as EX-L, "Extra Luxury", often top tier). S - Sport. SS - Super Sport. GT -
Why are the Ventilators kept at the top of the Roof? Ventilators are provided in the rooms just below the roofs because when the air inside the room gets hot this
How do Electric Eels hunt? An Electric Eel is a formidable freshwater Predator with the ability to emit a powerful voltage of Electricity underwater to immobilise passing prey. Releasing pulses of
How is Hair produced and How does it grow ? Hair is made of a tough protein called Keratin. First, your hair grows from Follicles within the skin. The part of
What makes Hot Peppers Hot? It is an irritant for Mammals, including Humans, and produces a sensation of burning in any tissue with which it comes into contact. Capsaicin and several
How We detect different Tastes? If you touch your tongue, you'll notice that it's covered with bumps and mini-ridges. Each of these bumps is made up of taste buds, which in
What is Dandruff ? Dandruff, those dry, white flakes of Skin you brush off your Collar or Shoulders is harmless. But it can be embarrassing and itchy. Dandruff really isn't
How does an Electric Bell work? Electric bell contains an electromagnet, consisting of coils of insulated wire wound round iron rods. When an electric current flows through the coils, the rods become magnetic and
How Glider works? The wings on a glider have to produce enough lift to balance the weight of the glider. The faster the glider goes the more lift the wings make.
What causes skin to wrinkle with age? The skin is made up of three layers: The outermost layer which everyone can see, called the Epidermis. The middle layer, called the Dermis. The innermost layer, called
What is the meaning of Seven Spikes on Statue of Liberty? It is just over 305 feet tall from the ground to the top of the torch flame. The crown has
What Is the Purpose of the “Do Not Cover This Hole” Hole on Hard Drives? Hard disk drives require a certain range of air pressures in order to operate properly. The
Why there is a Hole in Lollipop stick? It's because if you simply place the candy on top of the stick, the extremely low amount of friction between the stick and
