JERUSALEM (Jul. 24)
The national physics laboratories at the Hebrew University demonstrated today a new invention in use of solar cells as an energy source. Officials said such solar batteries are inexpensive, costing about $20 each and are already in use as warning lights on roads and dangerous passes. Another invention shown was a device for use by blind typists which makes it possible for the typist to type and verify results without the need for another person to verify, according to Prof. Zvi Tabor, head of the laboratories.