I love it when my worlds collide like this. Root 2 is a number that I use almost daily, since a gain of root 2 is a gain of approximately 3 dB – resulting in an audio signal with twice READ MORE
Category: Tutorials
A tour of the Pelikan factory
The making of Faber-Castell pencils
Repairing a Sheaffer Triumph Vac Filler
Early feeder design
Waterman’s early patent on feeder design, describing the mechanism of feeding the ink downwards to the nib while simultaneously allowing air back up into the reservoir.