Stepping into a time machine set on "just out of sight" is always an adventure. It's important that we have a sense of our technological history if for no other reason than to enjoy the fun as old becomes new again. This month, see if some of these references don't tickle some long-disused neurons, some from books and some from personal experience! Questions of inventors and discoverers may tread some grey areas of historical priority, but the answers reflect the most widely accepted reading.
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