- The supersonic Concorde jet made its first trial flight on January 1st 1969.
- The hydrochloric acid found in your stomach is strong enough to dissolve a nail.
- Rain contains vitamin B12.
- All of the clocks in the movie 'Pulp Fiction' are fixed to 4:20.
- The numerical digits we use today such as 1, 2 and 3 are based on the Hindu-Arabic numeral system developed over 1000 years ago..
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