Facts & Quotes™💡

…

“It's not what you are that holds you back, it's what you think you are not.” - Denis Waitley #quotes

Your taste in music develops through experience, and is not something you’re born with. #knowledge

​​Why do some Trucks have one Pair of Tires hanging in the air and not touching the road? Trucks have extra axles that move up and down depending on how much weight is on the truck. Trucks will lower the axles when loaded to reduce pressure on the road as the load is spread out over more axles and tires. On trucks such as concrete mixer trucks, these axles look like trailers hanging off the back, and they are only lowered when the truck is loaded. Other axles, such as on large dump trucks, are in the middle of the truck and only move up and down. There are also large busses that have what are called “tag” axles in the rear, these are single tire axles that move up and down and turn when the bus is making a tight turn, allowing it to maneuver in tight spaces. That is how those busses navigate inner city streets and traffic with such ease, they steer from the front and rear. Some specialized trucks have rear steer axles, such as fire trucks. For trucks, it is all about weight distribution. For the same reason, when you see a heavy haul truck and trailer there will be many more axles than normal, all according to the load on the truck. When you see a trailer with more than the standard two axles, that is also to allow the trailer to haul extra weight, such as a milk tanker truck. However, they remain down all the time instead of moving up and down.

Youngest siblings are more likely to think they're the funniest in the family. #psychology

…

It's up to you to find beauty in the ugliest of days. #motivation

Coca-Cola still uses coca leaves as an ingredient in its syrup The cocaine is removed at a unique US government authorized factory in New Jersey. #knowledge

Spending just five minutes in nature is enough to improve your mood. #psychology

…

…

It takes great courage to see the world in all its tainted glory, and still to love it. #thoughts

​​What causes the Eiffel Tower to be slightly taller during the summer? Eiffel Tower, French Tour Eiffel, Parisian landmark that is also a technological masterpiece in building-construction history. When the French government was organizing the International Exposition of 1889 to celebrate the centenary of the French Revolution, a competition was held for designs for a suitable monument.  More than 100 proposals submitted by the greatest international architects, the French government chose the one from Gustave Eiffel, the French engineer best known for his construction of metal bridges and for contributing to the design of the Statue of Liberty. His proposal won for its originality and for its technical aspects. 18,038 iron parts and 2.5 million rivets were needed for its assembly. Beyond the controversy, the work involved, and the complexity of the structure, the story of the Eiffel Tower is steeped in legends and curiosities. Chief among these is the variability of its height. The tower itself is 300 metres (984 feet) high. It rests on a base that is 5 metres (17 feet) high, and a television antenna atop the tower gives it a total elevation of 324 metres (1,063 feet).  Due to the thermal expansion of the metal that occurs during the summer time, the Tower grows an average of 15 centimetres (six inches) during the hottest months. The greatest growth on record occurred in 1976, when this heat-induced expansion added another 18 centimetres (seven inches) to the tower’s 324 metre height. Another curious element regarding this beautiful monument is its repainting, a process that takes place, on average, every seven years. The tower has changed colors numerous times, moving from Venetian red, to ochre yellow, to chestnut brown, and finally to its current bronze, chosen as recently as 1968.

BTS is responsible for about .5% of South Korea's entire economy. #entertainment

A tiger's tongue is so rough that just a few licks could draw blood from your hand. #animals

…

…

“One person with a belief is equal to a force of ninety-nine who have only interests.” - Peter Marshall #quotes

​​How do the 3D Movies work? If you look at an object near you and close your left and right eyes in turn, you’ll see that each has a slightly different view of the world. Your left eye sees a bit more of the left side of the object, and your right eye sees a bit more of its right side. Your brain fuses the two images together allowing you to see in three dimensions. This is known as stereoscopic vision. To create a similar effect, 3D films are captured using two lenses placed side by side, just like your eyes (or by producing computer generated images to replicate the same effect). In old fashioned 3D films, footage for the left eye would be filmed using a red lens filter, producing a red image, and footage for the right eye would be shot using a blue filter, resulting in a blue image. Two projectors then superimposed the images on the cinema screen. 3D glasses with blue and red filters ensured viewers’ left and right eyes saw the correct image: the red filter would only let red light through to your left eye, and the blue filter would only let blue light through to your right eye. Your brain would then combine these two slightly different images to create the illusion of 3D. Unfortunately, this meant that old fashioned 3D films couldn’t make full use of colour. To get around this problem, modern 3D films use polarised light instead of red and blue light. What is polarised light? A polarised light wave vibrates on only one plane. The light produced by the sun is unpolarised, meaning it is made up of light waves vibrating on many different planes. It can however be transformed into polarised light using a polarising filter. A polarising filter has tiny parallel lines etched into it, a bit like the slats on a set of venetian blinds. This means it will only let light vibrating on a particular plane through. As with old fashioned 3D, the film is recorded using two camera lenses sat side by side. But in the cinema, the two reels of film are projected through different polarised filters. So images destined for viewers' left eyes are polarised on a horizontal plane, whereas images destined for their right eyes are polarised on a vertical plane. 3D glasses use the same polarising filters to separate out the two images again, giving each eye sees a slightly different perspective and fooling the brain.

Camera flashes cause red-eye in photos because your pupils don't have enough time to restrict and the light reflects off the blood in your retina. #science