TY  - VIDEO
AU  - Stephan Schlamminger
C2  - IUPAP Newsletter
DA  - 2016-06-01
LA  - en
PB  - IUPAP Newsletter
PY  - 2016
TI  - Why is it so difficult to measure the gravitational constant?
UR  - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=921014
ER  -