Electric hydrofoils are quiet, emission-free and cheap to run. Proponents believe they could shift traffic from clogged roads to underused waterways. Some cities are putting those claims to the test https://t.co/cN7FNtnf81Photo: Candela https://t.co/1JbKVAIOVr ...

Electric hydrofoils are quiet, emission-free and cheap to run. Proponents believe they could shift traffic from clogged roads to underused waterways. Some cities are putting those claims to the test https://t.co/EFGZf1r5ip ...