From Hakan Lidbo, Stockholm, Sweden
I have made a “corona hat” so that I can keep my distance from my fellow citizens. It is very simple and cheap; the hat uses a reversing sensor from a car mounted in half a globe and is powered by batteries from a broken robot vacuum cleaner.
The sensor cost €20 and the globe was a broken one that I found in the trash. As the sensor’s range starts at 1.5 metres, it is perfect for warning when people get too close. As Sweden was never locked down, social distancing is very important.
