slices of cork
Yes - but a specimen can be something that is not observed under a microscope as well. For example, if you ever went on a walk in the country, picked a wildflower that grew there, and brought it home, you would have a specimen of a native plant that grew in the area where you found it.
Without the invention of the microscope, cells would either not ever been discovered or would have been discovered much later. This is because microscopes are the only way to see cells, and thus are the only way to prove their existence
Robert Hook discovered cells by looking through a microscope at a thin piece of cork. He was able to observe the cork cells, which looked like little individual chambers, so he called them cells, and the name has stuck ever since.
Robert Hooke was one of the first people to ever use microscope technology to examine life on the microscopic scale. While doing so, he coined the very word "cell" to refer to the small units that made up all life, naming them after the Monk cells he thoguht they resembled. As well, he was responsible for verifying Anthony von Leeuwenhoek's discovery of "little animals" now known as bacteria and protists.
individual cells are practically transparent, that is, light will pass directly through them and when viewed under a normal light microscope, almost nothing will have enough contrast for you to descern the different structures. Staining gives colour to the sample, increasing contrast between the cells and the surroundings, hence making it easier for you to observe them under the microscope. Usually stains do not simply give colour to the cell in general but bind to specific structures within the cell, making it easier to view specific organelles. However, staining is not required for all types of microscopy techniques. Some microscopy techniques required a completely different method of sample preparation, such as in electron microscopy.
bacteria
1950
Because it was the first microscope ever made with to lenses :)
Discovering and naming cells by observing cork under a microscope. Proposing the theory that all living things are made up of cells. Investigating the properties of elastic materials and introducing the term "cell" in the biological context.
the lilly cell
Kurt Angle won the first ever Armageddon Hell in a Cell Match.
1956
Yes - but a specimen can be something that is not observed under a microscope as well. For example, if you ever went on a walk in the country, picked a wildflower that grew there, and brought it home, you would have a specimen of a native plant that grew in the area where you found it.
Well that was the fist discovered cell membrane
1704
Yes - but a specimen can be something that is not observed under a microscope as well. For example, if you ever went on a walk in the country, picked a wildflower that grew there, and brought it home, you would have a specimen of a native plant that grew in the area where you found it.
In 1858, observed cells dividing under the microscope & deducted that ALL cells come from other living cells. Who ever put this answer was completely wrong. He helped contribute to it because he was examing the inside of the cork also known as the cell walls. He couldn't figure out what a real cell looked like because the cork cells were all dead.