Who invented the electron microscope?Question:Who invented the electron microscope?Microscope History:During the 1590's, Dutch spectacle makers, Zaccharias and Hans Janssen put several lenses in a tube creating the first microscope, magnifying objects between 3 and 9 times their actual size. In the...
When learning about the history of the microscope it is important to understand that until these microscopic creatures were discovered, the causes of illness and disease were theorized but still a mystery. The microscope allowed human beings to step out of the world controlled by things unseen and...
(A) Anton von Leeuwenhoek’s microscope was a simple glass magnifier with only one convex lens. He discovered many microorganisms, such as Paramecium, using this simple microscope. (B) Janssen brothers developed the first compound microscope with two aligned convex lenses. It looked very similar ...
Who invented the first telescope? Who invented the first electric chair? Who invented the electric toaster? What year were Christmas lights invented? Who invented the first spinning wheel? Who invented the smoke detector? Who discovered the speed of light?
The Petit-Chasseur megalithic necropolis during the Early Bronze Age The Petit-Chasseur site is located at the heart of the URV, in the modern city of Sion, Switzerland (Fig.1). The 3rd millennium BC megalithic necropolis was discovered in the excavation areas‘Petit-Chasseur I’and‘Petit-Cha...
a我把日美两国做了个比较,发现两者之间有很多共同点。 I have made Japanese and American both countries a comparison, discovered between both has very many common grounds.[translate] a那里的形势似乎非常复杂,政府已经答应进行认真调查 正在翻译,请等待... ...
“Filamentary growth of graphite… has recently been discovered again, …” [13]; 15 years later, Baker et al. [15] similarly noted that “Interest in catalytic decomposition of hydrocarbons on metallic surfaces …” (i.e., which produced carbon nano-filaments) “… has recently become more...
The compass is an instrument used to determine direction. Compasses depend on the magnetic field generated by the Earth. Compasses use magnets to detect this field. Answer and Explanation: The compass was invented centuries before the Scientific Revolution. The first compass was invented in China ar...
Cohen and Paul Berg he discovered a method to coax bacteria into producing foreign proteins, thereby jump starting the field of genetic engineering. By 1969, he performed studies on a couple of restriction enzymes of the E.coli bacterium with especially useful properties. He is recipient of the...
The morphological changes of SMMC-7721 were observed under a light microscope and an electron microscope. Inhibition of proliferation was measured with a colorimetric MTT assay. It was discovered that ACT extract-treated cells exhibit morphological changes typical of apoptosis, including condensed ...