What are ‘hole punch clouds’ and where do they come from
A pretty rare phenomenon was seen over Western Washington on Wednesday and several KIRO 7 viewers sent us photos.
Hackaday5y
Punch Those Hole-Drilling Blues Away With A Homebrew Punching Tool
[bitluni] took matters into his own hands and built this nifty DIY hole punch for light-gauge sheet metal. A little backstory will probably help understand why [bitluni] needs so many holes.
Business Insider1y
NASA space photo shows odd-looking sky holes near Florida
The clouds looked like someone had taken a hole punch to the sky. This unusual phenomenon isn't new. Researchers have been documenting it since the 1940s, according to NASA. But it wasn't until ...