In dealing with my refrigerator door battle, I stumbled on Still Tasty, a handy website that helps demystify how long foods last. Here are their guidelines for how long you can keep opened containers of common condiments (commercially produced, not homemade) in your refrigerator: BBQ Sauce: 4 months. Capers: 1 year (brined)
Ball pen is one of the mediums use in writing that comes in  different appearance such as colors, length and ball point. The  first ballpoint of the pen invented was like a â¦ leather tanner  issued on 30th of October 1888 by John J. Loud.
The first light pen was created around 1955 as part of the Whirlwind project at MIT. During the 1960s light pens were common on graphics terminals such as the IBM 2250, and were also available for the IBM 3270 text-only terminal. The light pen was used in the early 1980s.