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GISN & STEM Professionals' Blog

The GISN and STEM Professional's Blog is an online collaborative effort where scientists associated with GLOBE post their thoughts, comments, and philosophies about a variety of science topics.

GLOBE strongly encourages positive and productive discussions to further advance the scientific understanding of all involved with the GLOBE Program.
 

 

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By Dixon Matlock Butler, posted Aug 31, 2017 9:11:40 PM

From the start, the measurement of daily maximum and minimum air temperature within one hour of local solar noon has been a key GLOBE protocol. The low cost approach was to use a U-tube thermometer housed in a wooden instrument shelter facing away from the equator. The U-shaped tube contained mercury with pins on either side of the mercury. As the air temperature warmed the pin on one side would move while the other pin stayed in place; when the air cooled, the pin on the other side would be pushed up. The pins were held in place by magnetized strips behind the thermometer tube so that ...

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Posted in: Curriculum: TECHNOLOGY   STEM   GLOBE Science Topics: CLIMATE   CLIMATE CHANGE   GLOBE PROTOCOLS   EARTH AS A SYSTEM   EARTH SYSTEM SCIENCE   GLOBE Working Groups: SCIENCE WORKING GROUP   Investigation Areas: ATMOSPHERE   Primary Audience: ALUMNI   COUNTRY COORDINATORS   PARTNERS   SCIENTISTS   STUDENTS   TEACHERS   TRAINERS  

As Earth science has a single uncontrolled object of study, the first rule is to take today’s data today. While ice and sediment cores and fossils can reveal past conditions, the observations that can be made right now cannot be replaced by ones taken later. This goes well with the Native American adage, “You can’t step in the same river twice.” The environment is constantly changing and doing so on a wide range of time and space scales. In a recent video post, Neil deGrasse Tyson said, “One of the great things about science is that it is an entire exercise finding what is true. You ...

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Posted in: Curriculum: SCIENCE AND MATH   Event Topics: CAMPAIGNS AND PROJECTS (IOPS, ETC)   GLOBE LEARNING EXPEDITIONS   SCIENCE SYMPOSIA AND FAIRS   Field Campaigns: SMAP   EL NIÑO   GLOBE Science Topics: CLIMATE   CLIMATE CHANGE   GENERAL SCIENCE   EARTH AS A SYSTEM   EARTH SYSTEM SCIENCE   Investigation Areas: EARTH AS A SYSTEM   Primary Audience: ALUMNI   STUDENTS   TEACHERS