Glycerin
A thermohydrometer is actually a regular hydrometer that has a thermometer inside the float section. It is very similar to the regular hydrometer.
Otto Hilgard Tittmann has written: 'On the reduction of hydrometer observations of salt water densities' -- subject(s): Seawater, Density, Hydrometer
and what. air bubble system? or Hydrometer??
Salt Water
Seawater dissolves more than fresh water because of the salinity in the water.
a Hydrometer is used to measure the density of a solution, by the use of a scaled float. typically it is used for battery acid.
In salt water because a hydrometer sinks deeper if the liquid is less dense than water, The hydrometer floats higher if the liquid is denser than water.
A hydrometer consists of a cylindrical stem and a bulb weighted with mercury or lead shot to make it float upright. Mercury has a higher density, thus a lower volume for the same weight than lead. It is a toxic liquid metal, but also more dangerous and difficult to clear up the mess when a glass hydrometer is broken
No. They are microscopic plants that float freely in seawater.
The lower end of a hydrometer is filled with mercury or lead because these heavy metals have a high density. This allows the hydrometer to float vertically in a liquid and provide accurate measurements of its specific gravity or density. The heavy metal helps to counterbalance the weight of the stem and bulb of the hydrometer.
probally fresh because no salt in mouth or eyes addition: it is easier to float/swim in seawater since seawater is denser than fresh water.