Tuesday links

How to Navigate by the Stars.

Real-life Sharknado: 5 actual instances of animal tornadoes, including Gatornado.

Zambian teachers say they live in fear of 'invisible sex' with witches.

10 Textbook Blunders.

Here's the winner of Michigan's Goose Calling Contest.

Straitjacket and Other Control Toys for Badly Behaved Children.