Category Archives: Science

“How does a Galileo thermometer work?”

Too many weeks for a toddler to count ago, I promised you that we’d talk about how a Galileo thermometer actually works. I fully intended to answer this question at the time, but somehow kept finding one reason or another to put … Continue reading

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Night Sky Watch: The moon helps Mommyo spot Jupiter, again

Just after sunset tonight, glance up at the full moon. That bright star immediately next to it is Jupiter. Enjoy the view. Related Links:  Top 7 Must-See Sky Events in 2017 (National Geographic)

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Night Sky Watch: The moon helps Mommyo spot Mercury (and Mars)

If you happen to live in an area where clouds and/or light pollution aren’t blocking your view of the sky (Chicago, I love you, but you do have a tendency to thwart my inner astronomer), take a moment to look for Mercury. The … Continue reading

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“How do I use a Galileo thermometer?”

As you can see, our storm glass still isn’t back to normal. So Mommyo has declared that this is the week The Nine-Year-Old and I finally learn to use the Galileo thermometer Daddyo gave us all those years ago. Let’s start with … Continue reading

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Your storm glass update

As you remember, yesterday The Nine-Year-Old and I tried to reset our storm glass, with rather surprising results. A couple of hours after the official experiment had ended, I wandered into the office to find the once-clear storm glass looking like … Continue reading

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“How do we reset the storm glass?”

Last week, we tested our storm glass to see whether the crystals were forming (or dissolving) in response to changes in temperature. Short answer: Yes. But as you’ll remember, at the end of the experiment we were left with a pretty … Continue reading

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Night Sky Watch: Mars helps Mommyo spot Uranus

Apparently, the moon is tired, because Mars will be our tour guide tonight. (Assuming cloud cover and light pollution in Chicago permit us to even find Mars, that is. Oh, to live in a place with stars.) But let’s be … Continue reading

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“How do storm glasses work?” Part Two: The Testing

About two weeks ago, after noticing that our replica storm glass had been predicting cloudy skies more or less continuously since we acquired it six months ago, The Nine-Year-Old and I began to wonder how storm glasses worked. You can … Continue reading

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Night Sky Watch: The moon helps Mommyo spot Saturn

The moon is really working over time to help me spot things in the night sky this month. Tonight and tomorrow, it’s pairing up with Saturn. The best view is, sadly, just before dawn. Still, Andrew Fazekas at National Geographic tells me … Continue reading

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Night Sky Watch: The moon helps Mommyo spot Jupiter and Spica

Not content with merely helping us spot Regulus earlier this month, the moon continues its guided tour of the night sky with a stop near Jupiter and Spica, the brightest star in the constellation Virgo. The best view will be in the … Continue reading

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