The Portland Pudgy safety dinghy is a self-rescue boat, even without the optional inflatable exposure canopy and other survival gear. With the exposure canopy, sea anchor, and sail kit, the Portland Pudgy is an unsinkable, dynamic lifeboat.
The âlead pencil,â containing no lead, was invented in 1564, a turning point in pencil history. Although civilizations were centuries away from making mechanical pencil history, the pencil invented in the sixteenth century advanced the writing instrument. Before 1564, artists mainly used stylus-like pencils. The history of the pencil owes a dept to the discovery of a graphite mine in Cumbria, England.
Surprisingly, this wonder of pencil technology has actually existed in one form or another for the better part of five centuries. If you take a look at pencil history, you will see that the first image of a pencil ever produced actually looks more like modern mechanical pencils than a wooden pencil. This 1567 image depicts a wooden stock that held replaceable graphite.