If Each of Us Planted a Tree, Would It Slow Global Warming?

If Each of Us Planted a Tree, Would It Slow Global Warming?

So to start, let’s figure out how much carbon a single tree can hold.To convert this to mass, I’m going to assume a wood density (ρ) of 500 kilograms per cubic meter, which is half the density of water.The mass of my generic tree would then be:Illustration: Rhett Allain

The Sensible Math of Knocking Over Absurdly Large Dominoes

The Sensible Math of Knocking Over Absurdly Large Dominoes

Since multiplication can be tedious after a while, let's make a computer program to calculate the height of the 29th domino assuming the starting domino is 5 millimeters tall. Here is a similar program that calculates the height of dominoes needed to get one big enough to possibly crush a car.

Cities Are Tucking Climate Change Fixes Into New Laws

Cities Are Tucking Climate Change Fixes Into New Laws

“There are liberals or progressives who oppose climate change, but they definitely don’t want that multifamily apartment building to go up next to transit if it’s in their neighborhood.” That’s what Wiener says he found in his initial efforts to link development and transit in California last year.

How Dense Does a Body Have to Be to Break a Concrete Floor?

How Dense Does a Body Have to Be to Break a Concrete Floor?

I'm going to assume the floor is made of concrete and that the gravitational force on Vision (due to his large mass) is enough to exceed the compressive strength of concrete to initiate the break.What is "compressive strength"?