1.1 4The Scope and Scale of Physics - University Physics Volume 1 _ OpenStax.pdf

11/22/2020 1.1 The Scope and Scale of Physics - University Physics Volume 1 | OpenStax
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Figure 1.3 (a) Using a scanning tunneling microscope, scientists can see the individual atoms (diameters around 10 m) that
compose this sheet of gold. (b) Tiny phytoplankton swim among crystals of ice in the Antarctic Sea. They range from a few
micrometers (1 μ m is 10 m) to as much as 2 mm (1 mm is 10 m) in length. (c) These two colliding galaxies, known as NGC
4676A (right) and NGC 4676B (left), are nicknamed “The Mice” because of the tail of gas emanating from each one. They are
located 300 million light-years from Earth in the constellation Coma Berenices. Eventually, these two galaxies will merge into
one. (credit a: modification of work by "Erwinrossen"/Wikimedia Commons; credit b: modification of work by Prof. Gordon T.
Taylor, Stony Brook University; NOAA Corps Collections; credit c: modification of work by NASA, H. Ford (JHU), G. Illingworth