Fire Trucks and the Doppler Effect When we hear a fire-truck’s siren, we hear the Doppler effect. The sound of the siren starts out high, then as the fire-truck approaches, the pitch decreases. At some moment, the truck will neither be approaching or receding from you. At that moment, the pitch will be equal to [...]
Archive for August 15th, 2008
The Momentum of Social Networks (Part 4): Doppler Shift
Written by: Bill Sherman on Friday, 15 August 2008, 6:17 AM







2010/03/27: What Senior Leaders Want to Know about Social Learning
by Bill Sherman
2010/03/20: Design Outside of the Box
by Bill Sherman
2010/03/17: Followers or Friends?
by Bill Sherman
2010/03/13: Bi-Directional Collaboration
by Bill Sherman
2010/03/10: The Social LMS
by Bill Sherman

