LETTERS: Planetary motion
LETTERS: Spherical projections in teaching astronomy
LETTERS: Teaching astronomy with Mr Spock
LETTERS: Teaching telescopes
LHC: the emptiest space in the solar system
Life on Both Sides of the Fence: Mentoring Versus Being Mentored
Light and Electromagnetic Waves Teaching in Engineering Education
Limitations in predicting student performance on standardized tests
Line balancing in the Fabry-Perot experiment
Linear Momentum Density in Quasistatic Electromagnetic Systems
Linearisation of Simple Pendulum
Links and opportunities
Listening to the coefficient of restitution and the gravitational acceleration of a bouncing ball
Long-Distance Free Fall
Looking ahead ...
Looking Beyond Content: Skill development for engineers
Looking into space
Lorentz Invariance of Neutrino Oscillations
Lunar exploration: 1958-1973
Macroscopic coherence effects in a mesoscopic system: Weak localization of thin silver films in an undergraduate lab