The circuit has been designed for a person who loves to jog or walk while measuring the distance that have been covered during the activity. 4093 – a quad 2-input NAND with Schmitt trigger inputs ...
How long has that spaghetti sauce been in the refrigerator? When was the furnace filter changed last? Now you never have to wonder. A new gadget called DaysAgo can keep track of time for you, in both ...
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