Saturday, October 31, 2020

How Large is the Universe? Bigger than you can Imagine?

The universe that we can see is so large that it might as well be infinite. Our little solar system is like a speck of dust by comparison. That part of the universe that we can't see may actually be infinite, but we might never know.

Wednesday, October 21, 2020

Adults Can't Seem To Answer These Math Problems Without A Calculator. Can You? | Finance Republic

I saw this quiz on Facebook.  There is always stuff like this on Facebook.

There must have been at least 50 problems here. They are all multiple choice. The goal is to do them without a calculator. Most are on the 4th to 5th-grade level. I got them all correct. They had one problem where they actually got the answer wrong, but since none of their choices matched the correct answer, I guessed correctly the incorrect answer. The problem was "What is 411 - 401.1?". The correct answer is 9.9, but they listed the answer as 10.1. They even said that the problem is tricky without a calculator. Must be.

The toughest problem was a single 2 digit by 2 digit multiply. I can do these in my head, but it takes effort.

My one difficulty is that I'm always looking for shortcuts to solve problems in my head when sometimes it is best to just stick to basic arithmetic.

This seems more like an exercise in attentiveness than math because it would be easy to slip up and get one of the answers wrong.

Friday, October 16, 2020

Hiking accidents

I used to hear about accidents like this all the time while living in Utah.  Many people went hiking in the mountains and accidents happen.

There was a young couple at my work, Trent and Alexis Pabst, who went hiking to the top of a mountain when a storm moved in.  They were killed by lightning.  I noticed the very dark storm clouds from a distance as I was driving home from work, and the next morning one of the secretaries at work was in tears. 

Best wishes,

John Coffey

On Fri, Oct 16, 2020 at 10:33 AM Albert Nelms <wrote:
2020 irony: Some people will not live long enough to die from Covid-19. Wear your mask anyway.

Monday, October 5, 2020

Remembering César Pelli’s lost mark on the Midwest

I was 11 or 12 when they built the Commons mall. I loved it. They tore most of it down and turned it into offices. There is still a restaurant and a small "Commons" area with a children's playground.