Friday 5 video for December 27, 2019

It's been a quiet week -- so let's look back on the Top 5 stories for 2019! Lightwave Editorial Director Stephen Hardy counts down his choices. Can you guess what they are? (No prizes awarded for correct guesses -- sorry.)

It's been a quiet week -- so let's look back on the Top 5 stories for 2019! Lightwave Editorial Director Stephen Hardy counts down his choices. Can you guess what they are? (No prizes awarded for correct guesses -- sorry.)

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