Complex sentence: Webber experimentally detected gravity waves that have the frequency of sound (1662 Hz) yet celestial space does not transmit sound waves and electromagnetic shielding proves gravity is not an electromagnetic phenomenon.
Split into simpler sentences: Webber experimentally detected gravity waves that have the frequency of sound (1662 Hz) yet celestial space does not transmit sound waves. In addition, electromagnetic shielding proves gravity is not an electromagnetic phenomenon.