Date men from United States / California / Cupertino, 68 year old

Date single man from California, United States. I'm listed as bald, however, what's the listing for "hair's thinning, so I'll shave it all off"?
I'm a retired engineer who has worked on the Space Shuttle, angioplasty catheters, and aerospace adhesives. I also taught plastic technology.
My day starts with a 4 to 5 mile hike through the hills. Last year bought a road bike, and am now ride about 10 miles a day.
My favorite activities are visiting museums, attending musical events and lectures, going to movies and plays, and traveling. Also, I’m taking a course in Astronomy.
I enjoy a quiet dinner for two with a nice glass of wine or dinner with friends.
I enjoy meeting new people, seeing new places. My hobbies are playing with and autocrossing my 1972 Datsun 240Z, and working around the house. Reading is one of my favorite pastimes and I read about a dozen magazines and a book a month. I am currently reading Voyages to the Stars and Galaxies, And Another Thing (Book Six of The Hitchhiker's Guide to the Galaxy Trilogy) and a biography of Van Gogh and his art. And yes, I have read all the Harry Potter books, but only once!
My ethnicity is Irish – Italian with a Boston accent.
My ideal match would be someone who enjoys plays, music and museums. She would say “Why don’t we travel to….?”, then we would plan the trip and go. She would be the navigator of our lives!