The time observation form, also known as a process study form, is a basic and often-used tool for lean practitioners. Note that here we are talking about applying the continuous time-observation method and not the work-sampling method.

NASA’s Voyager 1 spacecraft officially is the first human-made object to venture into interstellar space. The 36-year-old probe is about 12 billion miles (19 billion km) from our sun.

People are more likely to conserve energy if it’s easy to do. Knowing this, students working on Stanford’s entry in the Solar Decathlon green-building competition have redesigned household mainstays to make reducing energy and water consumption a cinch.

Read part two here.