When radioactive elements decay they emit high-speed particles. These can be detected by use of a cloud chamber. The cloud chamber was invented by Charles Thomson Rees Wilson in 1911. The chamber works by saturating the air inside with alcohol vapor. Cooling the chamber with dry ice supersaturates the air. The energetic particles produced by the radioactive decay ionize
The Energetic Ray Global Observatory (ERGO) is a program that will provide students and teachers with a small detector that is capable of detecting the cosmic rays in a manner very similar to CosRAY and IceCube. The unit is small and will allow data to be exported automatically to Google Maps.
Plans for the Berkeley National Laboratory cosmic ray detector. This detector can be built by high school teachers and can be used to study cosmic rays in a method similar to the antarctic particle studies (CosRAY and IceCube).
This lesson was written for a Photography I course, to be taught in a lab with access to either a darkroom or computers/printers. The class has already spent ample time getting used to the basics of photography, learning to use their cameras as a creative tool, just as a painter might use a brush. This lesson could easily
Satellite observations of circulation features associated with a bowhead whale feeding ‘hotspot’ near Barrow, Alaska. Remote Sensing of Environment. 115:2168-2174
Okkonen, S.R., C. Ashjian, R.G. Campbell, J.T. Clarke, S.E. Moore, and K.D. Taylor. 2011.
The Center for Microbial Oceanography offers resources on education and outreach for K-12 teachers, undergraduates, grads & post-docs and related links. This is a great tool for lesson planning. In addition to outreach ideas, C-MORE offers kits for review and request.
What is it and why do we use it?
A CTD — an acronym for Conductivity, Temperature, and Depth — is the primary tool for determining essential physical properties of sea water. It gives scientists a precise and comprehensive charting of the distribution and variation of water temperature, salinity, and density that helps to understand how the oceans affect life
What is it and why do we use it?
An Acoustic Doppler Current Profiler, or Acoustic Doppler Profiler, is often referred to with the acronym ADCP. Scientists use the instrument to measure how fast water is moving across an entire water column. An ADCP anchored to the seafloor can measure current speed not just at the bottom, but also at
Some movements and feeding patterns of the western Arctic stock of bowhead whales are poorly understood. The purpose of this project is to use satellite telemetry to identify feeding areas and migration corridors. This poster explains the details of the project.
In parts of the northern Arctic region, the delicate balance of the food chain depends heavily on the diminutive copepod Calanus glacialis. This herbivorous Arctic zooplankton species is specially adapted to melting sea ice and the blooming of a few small algal species.