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Blog Category: University of Maryland

Deputy Secretary Blank Advocates Public Service in Commencement Speech

Guest blog post by Commerce Deputy Secretary Rebecca M. Blank

This morning, I had the privilege of delivering the commencement address to graduate students at the University of Maryland, Baltimore County (UMBC) commencement ceremony.

I was also deeply honored to receive an honorary Doctor of Public Service degree during the ceremony for my work as a public servant, including the leadership I provided in my previous job at Commerce, overseeing the nation’s premier statistical agencies, the Census Bureau (during the 2010 Census) and the Bureau of Economic Analysis.

The commencement speech provided an opportunity to give advice to the graduate students and to encourage them to use their expertise and experience to find solutions to the pressing problems facing our world. UMBC is particularly well-known for its scientific training. Science, technology, engineering and math–STEM fields–are particularly important, and it is STEM-related research that will drive innovation in the years ahead. In fact, STEM jobs have grown three times faster than other jobs, indicating the need for more workers with these skills.

NIST Researchers Measure High Infrared Power Levels from Some Green Lasers

Photo from an ordinary camera shows light from a green laser diffracted into several spots. The green laser pointer is visible in the foreground. (Bottom) The same vignette photographed by a webcam with no infrared-blocking filter reveals intense diffraction spots from 808nm infrared light, invisible to the eye. Green laser pointers have become a popular consumer item, delivering light that’s brighter to the eye than red lasers, but stories have circulated on the Web about the potential hazards of inexpensive models. Now, a team led by physicist Charles Clark at Commerce's National Institute of Standards and Technology (NIST) puts some numbers to the problem. In one case, the group found that a green laser pointer emitted almost twice its rated power level of light—but at invisible and potentially dangerous infrared wavelengths rather than green. A new NIST technical note* describes the nature of the problem as well as a home test using an inexpensive webcam that can detect excess infrared light from green lasers.  Read more