Challange... – 55 Seconds Brain It on! - Physics Puzzles Review

I've alway used to be to busy for this type of puzzles. But I was force to retire very early giving me time to while away and puzzles are just the ticket and this app has been very enjoyable. It works will and gives enough variety to keep me busy and challenged.
Review by John Evu on 55 Seconds Brain It on! - Physics Puzzles.