Larry D. Nichols Larry D. Nichols Larry D. Nichols, born 1939 in the United States, is a puzzle designer. He grew up in Xenia, Ohio, and studied chemistry at DePauw University in Greencastle, Indiana, before moving to Massachusetts to attend Harvard Graduate School. He is best known for the invention of mechanical puzzles including 'The Nichols Cube Puzzle' (1974), patent US365520. He has lived with his wife Karen in Arlington, Massachusetts since 1959. In 1957, 17 years before Dr. Rubik’s invention popularly known as the “Rubik's Cube”, Dr. Nichols conceived of a twist cube puzzle with six colored faces. It was a 2×2×2
Lucid 3-D Lucid 3-D Lucid 3-D was a spreadsheet package that began in the MS-DOS era; Windows support came later. Sam Redman and Michael Stanford incorporated as PCSG corporation (Portable Computer Support Group). Their Lucid 3-D spreadsheet was marketed by DAC. Lucid 3-D was considered noteworthy at the time for being "the only major memory-resident spreadsheet available for the PC." The selling point of the product was being "three dimensional. "Any cell" of the spreadsheet "can contain a complete other spreadsheet that you can access with a single key"stroke." Another technical feature was what their ads called "not only minimal recalc, but