to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
This photograph shows the wrong way to measure specific gravity. It shows the 1.050 line above the water surface which is misleading. The actual reading is made from looking below the water surface where the meniscus touches a line on the hydrometer.