Skip to main content

All about Mirrors

     It is glass-coated with metal amalgam which reflects a clear image. Mirrors are found in vehicles, the tools used by a dentist, changing rooms, and other places. 
There are three types of mirrors- convex mirrors which are used in vehicles, concave mirrors used by a dentist to examine teeth, and plane mirrors found in trial rooms or dressing tables.
     The image formed by a convex mirror is small and erect. This helps the vehicle's driver see a larger area and better idea the traffic or the other vehicles around. Also, the image formed is inverted. This is why in an ambulance the word 'AMBULANCE' is written backwards. When a driver views in the side or rear-view mirror, he/she will read the word correctly, hence giving way for it to pass. 

     A concave mirror on the other hand forms an enlarged image. Dentists use this mirror to examine the teeth properly and do the required treatment. 
Plane mirrors reflect the image in the same propositions, reversed left to right. There are two types of plane mirrors- one-way and two-way mirrors. They can be differentiated by a simple trick. Place your index finger on the mirror. If there is a gap between your finger and the reflection, it is a one-way mirror and if there is no gap, it is a two-way mirror. 
     In a two-way mirror, the person on the side of the non-reflective surface can view anything happening on the reflective side but the person on the reflective side cannot view what is on the other side. A one-way mirror on both sides is reflective, so it is most commonly found in trial rooms.




Credits: Harini


Comments

Post a Comment

Popular posts from this blog

6 Unknown Amazing Spots In The World

  Rotura is known as the world’s most remarkable geothermal wonderland, with shooting geysers and bubbling mud pools. While you indulge in relaxation, don’t forget to learn about the fascinating culture of Maori within your side trips.   Marvel at the Pangong Tso Lake in Ladakh, Himalayas is the most famous lake in India, this lake isn’t exactly a secret place, but it’s still relatively unvisited. Stretching out for about 160 km, this saltwater lake contains the highest amount of saltwater in the world.   The Salar de Uyuni (Salar de Tunupa) in Bolivia is a salt flat that extends to 10,582 square kilometres is considered to be the world’s largest salt flat in the world. Tucked away in Potosi, southwest of Bolivia, this is one of the most beautiful unknown places in the world. Formed as a result of the prehistoric lakes within its surroundings.   Dive into the blue lake at Jiuzhaigou National Park (China) is get a glimpse of this 1375-metre-lon...
8 comments
Read more

INTERESTING FACTS

Elephants are the only animals that can’t jump. Like fingerprints, everyone’s tongue print is different.  The only food that don’t spoil is Honey. You can’t kill yourself by holding your breath. TYPEWRITER is the longest word that can be made using the letters only on one row on the keyboard. People say, ‘Bless you when you sneeze because when you sneeze your heart stops for a millisecond.   The longest muscle in the body is the tongue.  The most common name in the world is Mohammed.  Carbon monoxide can kill a person in less than 15 minutes.  The blood of mammals is red, the blood of insects is yellow in colour, the blood of lobsters is blue. The hummingbird, the loon, the swift, the kingfisher and the grebes are all birds that cannot walk. The fastest bird is the Peregrine falcon, clocked at speeds of up to 240 miles per hour. Dragonflies are one of the fastest insects, flying 50 to 60 mph. The elect...
7 comments
Read more

LEECH THERAPY

  Early Egyptian, used leeches to treat the nervous system, abnormalities, dental problems, skin disease and infections. Nowadays mostly used in plastic surgery and microsurgery. The saliva of leech secretes peptides and proteins which prevent blood clot.     These secretions also called anticoagulant to keep blood flowing will help to heal the wounds. This therapy is seeing a revival or renewal due to its simple and inexpensive means of preventing complications.     These medicinal leeches most often come from Hungary or Sweden. Leech has 3jaws in them two tiny rows of teeth. They make a hole in a person skin and insert the anticoagulant through their saliva. Each leech allows extracting (up to 15ml of blood) for 30 to 45 minutes.    Chemical derive from the saliva of leech made into pharmaceutical drugs that can treat hypertension, haemorrhoids, skin problems, arthritic appreciate treatment for common joint disease osteoarthritis, ci...
7 comments
Read more