There's a number used to quantify how fast a virus will spread, the R-naught number. As the coronavirus spread though out the world, we saw how the threat of infection was measured and und...
Right now, just after sunset, in the southwest sky, you can check out the planets of Jupiter and Saturn as they get closer and closer to each other. They are millions of miles apart but they app...
As we are outdoors more and temperatures are rising, it might be a good time to look at hydration.
A healthy requirement for fluids can't really be the same for everyone. Surely the amount ...
I risked infecting my friends or becoming infected myself by throwing a very small socially-distanced party. I served baked appetizers, disinfectant wipes, and latex gloves. I cooked whi...
We recently watched the approach of Hurricane Barry and worried about the fate of Louisiana. After the devastation of Hurricane Katrina, what would another powerful hurricane do to this fragile ...
Where will the eclipse be seen? What if you are not in the path of totality? Total solar eclipse? What is apparent size? How can the moon seem to cover the sun complete...
The crack in Antarctica's Larson C ice shelf has been growing for years. Has the speed of the rift's growth stayed about the same? increased? decreased? Do the math and discuss the...
In my grocery store they now have these new water bottle refilling stations. You can simply refill your own container with water instead of buying a six-pack of bottled water....
What does this gizmo do?
We've given students a diagram of what the interior of this mechanism contains and asked them to try to decide what its purpose must be.
Then we've...
Nematodes
Grubs are killing my grass. I don't want to put poison into the ground. What can I do?
There are tiny roundworms called beneficial nematodes. They can kill destructive so...