Science World Blog

dog whistle

I don't hear much about dog whistles these days, except maybe in politics or cartoons. I was watching a children’s cartoon where the genius dog gives his adopted son a dog whistle to use in case of emergencies. That got me wondering, are there really things that produce a sound audible to dogs but not to people?

The size of a single-family home has skyrocketed in the past few decades. In 1978, the average home was 1,789 square feet. In 2007, it was over 2,100. That's a lot of house to heat, light, furnish, clean and build.

Discovery Session Summary: January 27

In one FSL session, we visited STEMCELL Technologies Inc, a local biotechnology company. We started our tour by looking at the laboratories. STEMCELL specializes in manufacturing and developing products for isolating, culturing and assaying stem and progenitor cells.

lidar technology measures distance and speed

I think of myself as a law-abiding citizen, at least when it comes to Newton’s laws of motion. Therefore, my interest in the measurement of my vehicle speed is purely scientific and not motivated by any desire to avoid a ticket. However, I'd rather not have a ticket, so that got me thinking—how do the police measure vehicle speeds?

worms hermaphrodite

Earthworms are both male and female at the same time, hermaphrodites. In the spring and fall when the weather is right, they join up and exchange sperm. They produce a cocoon that collects its own eggs and the new sperm. One or more baby worms hatch from the cocoons.

Even while the Ken Spencer Science Park was closed for the winter, there was no time to sit and twiddle thumbs waiting for spring to arrive once more. In fact, this winter ended up being some of the busiest months for big decisions and changes, at least in the life of the curator. The excitement didn’t stop at the removal of the Urban Density exhibit to make room for something new. We also made a huge change in what the park looked like, underfoot.