Here's a link to rowing 2k in Wolfram:Alpha
http://www.wolframalpha.com/input/?i=ro ... chine.v---
The equivalent activities were quite interesting:
~~ 36 minutes machine tooling, welding
~~ 28 minutes scrubbing floors
~~ 43 minutes operating riding mower
Every time you reload the page, you get a new list:
~~ 27 minutes performing water aerobics
~~ 9 minutes playing squash
~~ 43 minutes pushing a stroller
