who dicovered the lacrimal gland?
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Through lack of illustrations it is difficult to get a clear conception of Greek and Roman knowledge of ocular anatomy, for the descriptions are frequently not only scant, but confused through a multitude of names, which may or may not have had the same meaning. \nGalen (129-200 AD), in describing the lacrimal apparatus speaks of two glands, one in the upper and one in the lower lid.
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No record of who actually discovered it. It is several thousands of years old. It can be naturally extracted from Willow bark.
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The scientist who first discovered the microbial life was Antony Van Leeuwenhoek". He is called as the Father of Microbiology.
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Andreas Vesalius.  He dissected human cadavars and drew pictures to illustrate human anatomy.
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Sushrutha , a surgeon who developed the operative techniques of rhinoplasty (plastic surgery), wrote the Sushrutha Samhita which describes a highly developed surgery.it was written 500 Years Before Common Era .\n\n it contains information about ancient medicene system ayurveda. some other medical books are:\n\nCharaka Samhita         Maharishi Charaka \nSushrutha Samhita       Maharishi Sushrutha \nAsthanga Samgraha       Maharishi Vagbhata \nAshtanga Hrudaya        Maharishi Vagbhata \nMadhavanidana           Maharishi madhava \nSarngadhara Samhitha    Maharishi Sarngadhara \nKasyapa Samhitha        Maharishi Kasyapa
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1. basal tears: in healthy mammalian eyes, the cornea is continually kept wet and nourished by basal tears. they lubricate the eye and help to keep it clear of dust. tear fluid contains water, mucin, lipids, lysozyme, lactoferrin, lipocalin, immunoglobulins, glucose, urea, sodium, and potassium. some of the substances in lacrimal fluid fight against bacterial infection as a part of the immune system. \n\n2. reflex tears: the second type of tears results from irritation to the eye by foreign particles, or substances such as onion vapors or tear gas or pepper spray. these reflex tears attempt to wash out irritants that may have gotten into the eye.\n\n3. crying or weeping: the third category, also referred to as crying or weeping, is increased lacrimation due to strong emotional stress or pain. this practice is not restricted to negative emotions; many people have been known to cry when extremely happy. in humans, emotional tears can be accompanied by reddening of the face and sobbing - cough-like, convulsive breathing, sometimes involving spasms of the whole upper body. tears brought about by emotions have a different chemical make up than those for lubrication.
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Charles Darwin, the discoverer of evolution; Watson and Crick, the discoverers of DNA
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he invented the vagina?
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Carl Wilhelm Scheele discovered it in 1772, and Joseph Priestly found it in 1774 (independently).  Scheele was a Swede, Priestly was an Englishman.
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He used drosophila (fruit flies) to basically establish the field of genetics by showing predictable outcomes of eye color by breeding specific flies with one another.
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+\nReal\n\nNo one really believes that the human eye developed from some other biological structure in one single generation, \nNo one believes the iris could have developed without a cornea, or a retina without a lens, or a pupil without an eyelid to protect it.\n\nEvolution of complex organs can’t occur in a single generation,  parts of organs cannot  evolve without the other parts. That is demanded by the concept of the survival of the fittest. Part of an eye gives no competitive advantage to one over another.\n\nEvolution of a specie is impossible!\n\nThe nest possibility is chance….   One day a man happened   without cause…..\nNot very likely\n\nThe last alternative possibility is that the spiecie migrated here from some other point in space or some other dimension.\nThat would still leave us with the question were they created…  and the same choices..\n\nYes creationism is real and the only logical possibility\nthere are many good resources
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I think you mean who discovered smoking? and i think it was the aztecs
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You are asking about the field of hydraulics. Knowledge and study of this goes back at least to ancient Greece. (It was Archimedes who, according to legend, solved the puzzle of the dishonest goldsmith when he submerged himself in his bath after puzzling over the problem for days, noted the water overflowing the tub, and ran naked through the streets shouting "I've got it!" Only he shouted it in Greek, so it came out "Eureka!" (As far as running naked through the streets goes, the Greeks took a more liberal view of such behavior than our present society. If you were to try that, you'd probably be chastised firmly.) \nBut I digress. Realizing that liquids are essentially incompressible, he was able to determine that the goldsmith was in fact a crook/Republican. From this humble start, modern hydraulic studies began.
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Johann Wolfgang!\n\nHe discovered furfural, worked on the use of platinum as a catalyst, and invented a lighter, known as Döbereiner's Lamp.\n\n:)
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einstein. he just sat in his chair and thought of theories. he did experiments in his mind
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"penicillin" was discovered by Alexander Flemming
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The invention of the microscope is variously accredited to Zacharias Janssen, a Dutch spectaclemaker, c.1590, and to Galileo, who announced his invention in 1610.