Greatstone-on-Sea: Sound Mirrors 
Description
Before Radar was invented the UK Government had worked out they could use the noise of incoming aircraft to plot their location and direction - giving an early warning of potential attacks, which given this was the late 1920s and early 1930s shows the country was already preparing long before Hitler even came to power in Germany. Today the Sound Mirrors are a reminder of how quickly technology moved during war time going from vital front line to historical footnote in a couple of years. The mirrors themselves are large pieces of sculpted concrete, designed to reflect and magnify sound waves being generated by approaching aircraft. Using multiple mirrors this can be used to plot the location and speed of the planes. The site has several different designs of sound mirror each with their own purpose
Charge
Free - no access to the mirrors themselves
Getting There
From Seaview Road bus stop turn left into Seaview road and walk down the road until it ends on the shingle. Walk across the shingle and enter the RSPB Nature reserve, turn left and follow the path until you reach a junction of paths after about 10 minutes, here turn right and follow this path until you reach the sound mirrors. It's about a 15-20 minute walk from the bus stop to the Sound Mirrors, with most of it over loose shingleLatitude: 50.956588; Longitude: 0.954211
What3Words: footpath.period.painters
