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A sextant is a doubly reflecting navigation instrument that measures the angular distance between two visible objects. The primary use of a sextant is to measure the angle between an astronomical object and the horizon for the purposes of celestial navigation.

Immunoglobulin E is a type of antibody that has only been found in mammals.
IgE is synthesised by plasma cells.
Histamine and IgE antibodies act as allergy mediator.

Proteins are nitrogenous compounds being made up of carbon, hydrogen, oxygen and nitrogen.
Proteins also contain sulphur.
Proteins are referred to as “bodybuilding foods” since they are utilized to create and repair bodily tissue.
They aid in the battle against infection and boost the body’s immune system.
Additionally, they serve as a source of fuel, as our body consumes excess protein for energy.

Quantum mechanics, including quantum field theory, is a fundamental theory in physics which describes nature at the smallest scales of energy levels of atoms and subatomic particles. It is proposed by Max Plank.

Lithium is a soft, silvery-white alkali metal.
Under standard conditions, it is the lightest metal and the lightest solid element.
At the modest temperatures and pressures of Earth’s surface, the densest known material is the metallic element osmium, which packs 22 grams into 1 cubic centimetre, or more than 100 grams into a teaspoonful.

Electromechanical transducer, any type of device that either converts an electrical signal into sound waves (as in a loudspeaker) or converts a sound wave into an electrical signal (as in the microphone).

Bromine is a chemical element with symbol Br and atomic number 35. It is the third-lightest halogen, and is a fuming red-brown liquid at room temperature that evaporates readily to form a similarly coloured gas. Its properties are thus intermediate between those of chlorine and iodine.

Pollination through animals-Zoophily, Insects-entomophily, Wind-Anemophily.

It is toxic to hemoglobic animals (both invertebrate and vertebrate, including humans).

An artificial heart is a device that replaces the heart.
Artificial hearts are typically used to bridge the time to heart transplantation, or to permanently replace the heart in the case that a heart transplant is impossible.
Although other similar inventions preceded it from the late 1940s, the first artificial heart to be successfully implanted in a human was the Jarvik-7 in 1982, designed by a team including Willem Johan Kolff and Robert Jarvik.

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