No sports without technology- Doppler Lidar

We know the fact each and every sport has a technological support without which no sport can be exposed or developed. Here is a good example that proves the statement no sports without technology.  Sailing is all about getting wind into your sails that can push your yacht along, but other than licking your finger and pointing it up towards the sky, where do sailors get wind speed and direction info? For years they’ve been using Doppler radar systems similar to what weather forecasters use on TV, but the problem is these systems are pretty useless when there’s little or no wind, which is precisely when sailors need the information.