Have you ever wondered how much breathable air is on Earth, and if we'll ever run out? Our atmosphere is paper-thin relative to a basketball, and we use its oxygen to power internal combustion engines, create electricity, and manufacture products (cement, chemicals, plastic). Worse, we are destroying the plants that make more breathable oxygen.
I calculate how much oxygen a tree breathes and how much excess oxygen a tree produces in three different ways. Spoiler alert: It's not a lot.
Help Scott plan his next big adventure. What could possibly be better than riding a bicycle around the world?
Ten reasons why we might be measuring oxygen in the atmosphere wrong. And how global oxygen depletion may be a hidden driver of climate change.
Guest Post by Manish: Sometimes taking a break from your daily routine is the best way to get perspective on your life. Here are some tips on how travel may be the refresher course on life that you need.
Time for an update on my progress of losing weight while literally doing nothing. A sad update leads to renewed motivation. I also added a few new rules to try, like: Put down the spoon in between bites.
My audition tapes for the Survivor TV show including eating a tarantula, a never-before-seen strategy, and funny excerpts from my 2008 handwritten application.
A 3-part worksheet to help you get unstuck. This is an exercise to help you overcome obstacles and achieve your dream. Can you get from one side to the other using either logic or emotions?
My first life experiment will be about a topic that seems commonplace: how to lose weight. Here I try a variation of a mindfulness diet. I call it the Do-Nothing Diet. Can I lose weight by literally doing nothing?
After hunkering down for a year during the pandemic, at 71-years-old, Rachel begins her fourth bicycle tour with partner Patrick.
I demonstrate how to calculate the mass of oxygen in the atmosphere. And I talk about ten reasons why the accepted values may be wrong.
Scott swims from one island to another overcoming his fear of water and fulfilling an old dream.
