Gravitational Wave Pins and Buttons

Description: This waveform (GW150914) is that of the first observation of gravitational waves on 2015-09-14. It was also the first observation of a binary black hole merger and demonstrates the existence of binary stellar-mass black hole systems.

Description: Gravitational Waves (halftone).

Description: Gravitational Waves (light design).

Description: Albert Einstein in the style of the pop art design

Description: Without the Universe, there would be no us. Physics is the scientific discipline that aims to understand the Universe.

Description: The Doppler Effect or Doppler shift is the change in frequency of a wave in relation to an observer who is moving relative to the wave source.

Description: The Doppler Effect or Doppler shift is the change in frequency of a wave in relation to an observer who is moving relative to the wave source.