- Joined
- Mar 27, 2013
- Messages
- 22,537
- Reaction score
- 14,955
(Sorry no pictures) That array of pens is insufficient. In high school junior and senior years, I carried every day in my shirt pocket, black, blue, red, and green pens, as well as a #2½ pencil*. Four colors are far better than three for taking notes in Pre-calc and Calc. And those four color pens with the four sliders don't come in extra-fine point. That continued into college and, occasionally, to this day. But alas, I didn't, and don't, have the pocket protector.
When I was learning drafting in high school (in 2002-3. They taught us how to do it the old fashioned way before teaching us CAD) I had one pencil loaded 2B lead that I used for the actual part outline and another with an H lead for initial sketches and dimension/center lines. Good times.Lead hardness for art and drafting is labeled on one end of the scale with B numbers - B, 2B, 3B, etc. - becoming softer with higher numbers. At the other end are the H numbers - H, 2H, 3H, etc. - getting harder as the numbers go up.
In the middle is HB. HB is about the same (or is it exactly the same?) as #2. H is like #3 and B is like #1.
F is the oddball in the nomenclature, and it's like a #2½, so in between HB and H.
My pencils come with a few HB leads, and the first thing I do is remove them and put in F.
And they were sharpened using sandpaper on a little paddle that had multiple sheets.When I was learning drafting in high school (in 2002-3. They taught us how to do it the old fashioned way before teaching us CAD) I had one pencil loaded 2B lead that I used for the actual part outline and another with an H lead for initial sketches and dimension/center lines. Good times.
Not in my case, I just had 0.5 mm pencils and leads so sharpening wasn't necessary.And they were sharpened using sandpaper on a little paddle that had multiple sheets.
I give serial numbers to all my AAA and AA NiMH rechargeable batteries and keep track of their use in an Excel file.
The good thing about them is you have to know which ballpark you are in before you do the calc. The bad thing is you need to know which ballpark you are in before you do the calc....I occasionally use my slide rule. It freaks out my students!
I occasionally use my slide rule. It freaks out my students!
Haha! I still have the sandpaper paddle from my 70s college drafting days. It now resides in my rocket range box and is regularly used for cleaning the micro clips!And they were sharpened using sandpaper on a little paddle that had multiple sheets.
I've never really used a slide rule, only worked a couple of operations for the fun of it. Does not using one count against me? Does the fact that trying it was fun count for me?I occasionally use my slide rule. It freaks out my students!
Do the numbers come out different if you're in, say Yankee Stadium vs. Dodger Stadium? And why would one be playing with a slide rule during a baseball game? I am so confused.The good thing about them is you have to know which ballpark you are in before you do the calc. The bad thing is you need to know which ballpark you are in before you do the calc....
A slide rule is just a compact analog book of logs for lazy people. This may sound like circular response, but my most usee slide rule was circular.I'm too lazy to use a slide rule. I just pull out a book of logs and do simple addition/subtraction/whatever, then go backwards.
You get more significant digits from a book, plus it's easier (and more accurate) when you interpolate.A slide rule is just a compact analog book of logs for lazy people. This may sound like circular response, but my most usee slide rule was circular.
Enter your email address to join: