David Kestenbaum

David Kestenbaum is a correspondent for NPR, covering science, energy issues and, most recently, the global economy for NPR's multimedia project Planet Money. David has been a science correspondent for NPR since 1999. He came to journalism the usual way — by getting a Ph.D. in physics first.

In his years at NPR, David has covered science's discoveries and its darker side, including the Northeast blackout, the anthrax attacks and the collapse of the New Orleans levees. He has also reported on energy issues, particularly nuclear and climate change.

David has won awards from the American Association for the Advancement of Science, the American Physical Society and the Institute of Electrical and Electronics Engineers.

David worked briefly on the show This American Life, and set up a radio journalism program in Cambodia on a Fulbright fellowship. He also teaches a journalism class at Johns Hopkins University.

David holds a bachelor's of science degree in physics from Yale University and a doctorate in physics from Harvard University.

Copyright 2017 NPR. To see more, visit http://www.npr.org/.

DAVID GREENE, HOST:

Note: This episode originally ran in 2015.

Spreadsheets used to be actual sheets of paper. Sometimes, a bunch of sheets of paper taped together.

Any calculation made on a spreadsheet was done by hand, and these could take days to complete for an accountant or bookkeeper. It was tedious. One little adjustment to these calculations meant a whole day of erasing and filling the same boxes out again.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2017 NPR. To see more, visit http://www.npr.org/.

KELLY MCEVERS, HOST:

Copyright 2015 NPR. To see more, visit http://www.npr.org/.

Transcript

ARI SHAPIRO, HOST:

Pages