Optical Level Sensor ▶ Check out the full blog post over at http://realpars.com/level-sensor/ Optical level sensors work by converting light rays into electrical signals which measure a physical quantity of light then translate it into a measurement. Watch the video and answer the question. Is an Optical Level Sensor a Point or Continuous sensor? #Optical_LevelSensor #LevelSensor #LevelMeasurement #PLC #IndustrialAutomation #Automation #Industry #RealPars #Sensor #Engineering | RealPars

For over 20 years NASA has been tracking the global surface topography of the ocean to understand the important role it plays in our daily lives. Climate change is causing our ocean to warm and glaciers to melt, resulting in sea level rise. Since 1880, the global sea level has risen 8 inches; by 2100, it is projected to rise another 1 to 4 feet. More about sea level: http://climate.nasa.gov/vital-signs/sea-level/ http://sealevel.nasa.gov More 'NASA's Earth Minute' videos: http://climate.nasa.gov