Deformation monitoring systems

Extensometer - an instrument for measuring the deformation of a material under stress.
Piezometer -  used to measure static liquid pressure in a system
Rain gauge - used by meteorologists and hydrologists to gather and measure the amount of liquid precipitation over a set period of time.
Thermometer -  measures temperature or a temperature gradient using  different principles
Barometer - Used in meteorology to measure atmospheric pressure
Accelerometer - Measures proposer acceleration
Seismometers - measure motions of the ground

Moving trees

The forces of nature....

The forces of nature....