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Microscopes
Microscopes are used to look at things that are not visible to the naked eye. This category would demonstrate how microscopes work and information about different kinds of microscope.
4,322 Questions
Why cant opaque objects be veiwed under a compound microscope?
That is certainly not true. A "compound" microscope is one that has an objective AND an ocular. Typically the front focal distance is so short that illumination through the specimen is most common. A "simple" microscope has only one magnifying lens group, not two or more. Short front focus makes lighting from the side more difficult but not impossible or even rare.
Are made by crushing mineral sample. After sending them into a filter and sorts from size. Then are placed on a microscope slide.
What do things that are to small for a light microscope get viewed by?
Things that are too small for a light microscope, such as viruses and molecules, can be viewed using an electron microscope. Electron microscopes use a beam of electrons instead of light to magnify objects at a much higher resolution than light microscopes.
Who what where how and when was Anton van Leeuwenhoek?
Short Answer:
Anton van Leeuwenhoek invented a method for making small spherical lenses that much increased the magnification of simple microscopes. He discovered single celled microorganisms and other microscopic structures. He advanced the design of the simple microscope.
The compound microscope was invented 40 years before Anton van Leeuwenhoek was born. He used a simple one lens microscope.
More:
Anton van Leeuwenhoek, (October 24, 1632 -- August 26, 1723) is known as "the Father of Microbiology". He was from Delft, Netherlands. He was not trained in science, but was originally a tradesman.
The date is not know precisely, but around 1670, more than half a century after the discovery of the compound microscope, van Leeuwenhoek discovered a way to make small lenses of very high magnification that went significantly beyond the capability of existing microscopes.
He is considered to be the first microbiologist because of his scientific discoveries made possible by his enhanced microscopes. He was the first person to observe and describe single celled organisms. He was a contemporary of Robert Hook and the two men share some credit for establishing that living things were made of cells.
Beyond the initial discovery of the method for making small spherical lenses, van Leeuwenhoek made over 500 optical lenses (though they did not necessarily become 500 different microscopes) and can be said to have built at least 25 variations on his basic design of the microscope.
How does the letter a as seen through the microscope differ from the way an a normally appears?
It appears so much bigger you probably won't recognize it as an "a".
Can particles be seen through a microscope?
Yes, absolutely. In fact, these days, there are microscopes that are capable of discerning smaller and smaller particles. At the California NanoSystems Institute at UCLA, for example, they have been using a specially designed optical microscope, which enables scientists to observe lithographic microparticles of different shapes. I enclose a link to the article about this research.
Why is the position inverted when you look through a microscope?
To keep the answer very simple, the specimen being viewed is inverted when light passes through the objective lens (carrying the image) , which is usually convex in nature. So if you view something which is already "inverted" it would get corrected, i.e appear right.
(The bending of light is called a refraction, which causes the image to bend along with it.)
Why do you need to tin first the wire before soldering it?
pre tinning make it easier to solder wire because the solder is already " stuck" to the wire. and less solder will be needed to join the wire. if you watch the solder under a magnifier while tinning, you will notice the solder does not flow and "stick" until proper heat and flux ar applied. this heat usually is more than required to melt the solder because it takes mor heat to heat up the wire due to higher density. after tinning, less heat is required to melt the solder, and enough flux is usually left from tinning to quickly join the wire to the desired material provided the material is also tinned. this reduces cold solder and provides for a more relible connection. To tin the wire first is to cover the end of the wire with a layer of solder before you put it thru the hole in the PCB that will give you insurance of a proper electrical contact else you will put a heap of solder on the PCB without a proper contact with the wire itself what is called a dry joint that go for un tinted copper wire only normally all electronic component pins is factory tinted
What is the relationship between magnification and the diameter of the field of view?
Magnification is inversely proportional to the diameter of the field of view.
Who was the inventor of the microscope?
The original inventor is not easy to identify. An early microscope was made in 1590 in Middelburg, Netherlands.
Two eyeglass makers are variously given credit:
Hans Lippershey and Hans Janssen.
Note also that Giovanni Faber coined the name microscopefor Galileo Galilei's compound microscope in 1625.
Because it helped with the cell theory.
How do you create as many words s you can from this word microscopes?
Use an anagram program =) Here is a sample...
copremic, composers, comprises, composer, composes, compress, comprise comices, compers, compose, coreopsis, meropic, moccies, moriscoes, scrimps, spermic comice, comics, comper, compos, cosmic, crimps, imposers, moriscos, oosperms, oporices, persicos, promises, scoopers, scrimp, semipros, siroccos
Should you take out your disc in the xbox 360 after your done using it?
There is no need to take a disk out after playing. But do not move the Xbox 360 with a disk inside until it is off or the disk is removed.
As with any other system, the disc is fine inside, regardless of whether the system, in this case, the 360, is on or not.
If you do take it out, make sure that you keep it somewhere safe, so that the black underside is not messed with, as the underbelly is more important that the top, since cd/dvd info is read from the bottom usually.
What are three uses of metalliods?
Three uses of metalloids are something and if you find the right answer please tell me i need to know ~ the person who needs to know
As in a camera, this part is usually called an iris diaphragm. It can make the aperture bigger to let in more light, or smaller to make the image sharper. The shutter in a camera is not the same thing.
How did microscope come to existence?
well u know um it was a snowy evening and Robert Frost was drinking hot chocolate. From mike the mike
The condenser is the part of a microscope that can be moved in any direction to catch and direct light onto the object being observed. Adjusting the condenser helps to control the amount and focus of light on the sample, resulting in clearer and sharper images under the microscope.
Who invented comparison microscope?
The comparison microscope was invented by Philip Gravelle. Gravelle was a chemist, and his comparison microscope was used to identify bullets and cartridge cases by a pioneer in ballistics, Calvin Goddard.
Should you clean out a bird house after they are done using it?
I clean my birdhouses and nesting boxes every fall so that the new inhabitants can build their own little nests. My Doves use nests left by others and these are usually in a tree or, currently, on the power line that runs to the house.
Why optical microscope are so named?
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