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they did something about cells......I think
-1950. Dutch eyeglass makers, such as Zacharias Janssen ( exact dates unknown ), invent the first compound microscopes, by lining up two lenses to produce extra-large images.
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What Hans and zacharias janssen discovered?
Hans and Zacharias Janssen invented the first compound microscope.They did not discover it.
What was Hans and Zacharias Janssen's contribution to science?
Combined too convex lenses within a tube, thus constructing the forerunner of the compound microscope
What did hans janssen do for science?
him and his son helped invent the compound microscope by putting two lenses together warning they did not invent the microscope but did invent the compound microscope
How was Zacharias and Hans Janssens work affected by earlier scientists?
by a frog
Hans and zacharias jansen?
II-Courtesy jules advincula biology :P
What are the contributions of Hans and Zacharias Janssen?
Hans and Zacharias Janssen invented the microscope
What Hans and zacharias janssen discovered?
Hans and Zacharias Janssen invented the first compound microscope.They did not discover it.
What year did Hans and Zacharias Janssen's contribution to the cell theory occur?
Hans and Zacharias Janssen invented the compound microscope in 1595.
Where was Hans and zacharias jenssen born?
Zacharias Janssen was born In 1580.
When was Hans janssen born?
Hans Janssen was the supposed creator of the microscope, along with his son, Zacharias Janssen. Actually, Hans Janssen was the son of Zacharias Janssen, not the other way around. And yes they did invent the first Compound Microscope in the year 1590.
Who was zacharias janssen brother who help to discover the microscope?
hans janssen is the brother of zacchariah janssen
How are Hans and Zacharias Janssen related?
they were father and son
When did Zacharias janssen and Hans discover cell theory?
in manila
Who invented the lens grinding machine?
Hans and Zacharias Janssen
What happened in 1590?
zacharias and Hans janssen invented the microscope
What was Hans and Zacharias Janssen's contribution to science?
Combined too convex lenses within a tube, thus constructing the forerunner of the compound microscope
What was Hans and Zacharias Janssen's contribution?
Hans and Zacharias Janssen are credited with inventing the first compound microscope around 1590. Their creation allowed for the magnification of small objects, leading to advancements in scientific observation and research.
