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And the orbits go on…

herb masters
24.4.22 SciSchmooze

Saturn's Ears

Greetings Science Reasoning Readers,

These are amazing times to be alive. Humans have done fairly well for the last 300,000, or so, years. It seems that as we have become more numerous we have had to increase our resourcefulness and understanding of how things work. Many amazing things have been invented and discovered. Now after a few hundred years of 

Blowing Smoke with the SciSchmooze

4.15.2024 another taxing day
Herb Masters

Hello Science Fans and Acceptors,

I hope everyone had a chance to see the last week’s eclipse in one form or another. I was fortunate enough to see it with a few thousand people in Torreon, Mexico. They were in the park that surrounds the Planetarium in Torreon. It was great to experience it with a bunch of astronomy loving high schoolers who had been working for months with staff to collaborate with the 

An Easter SciSchmooze

Bob Siederer
March 31 2024

Caltrain's New Electric Trains. Photo by Bob Siederer

Hello again Science Fans! I’m filling in for David this week (and next). For those of you who celebrate, Happy Easter!


More about Time

In my February 25 SciSchmooze, I went into a discussion about time. There was one error (that I know of) in that discussion where I said how there was a two week difference between the start of Daylight Savings Time here in the US versus Europe, with them making the change later than us. The difference is actually three weeks, with Europe changing to Daylight time early this morning. They will return to st


Bob Siederer
March 24, 2024

Coronal loops on the Sun, captured by NASA’s Solar Dynamics Observatory.

Hello again Science fans and welcome to another SciSchmooze!

There are 87 events on the calendar over the next two weeks. My picks include:

  1. Wonderfest: BLACKBERRY and Corporate Psychology - 03/26/2024 05:00 PM
  2. The Psychology of Misinformation and Its Remedies&nb

SciSchmoozing the Past & the Present

Face of a Denisovan based on DNA alone. Credit: Maayan Harel/Hebrew University

科学迷们,大家好!(Hello again science fans!)

Neanderthals (H. neanderthalensis) and Denisovans (H. denisova ??) interbred at various times and places. (The “??” following H. denisova refers to the current situation where insufficient Denisovan fossils exist to firmly classify them.) Modern humans interbred with Neanderthals so today we H. sapiens have varying snippets of DNA derived from Denisovans. Also, study of blood types of these three groups suggest that Rh incompatibility may have affected the health of some hybrids. (By the way, D


Taking a Leap with the SciSchmooze

Bob Siederer
Feb 26 2024

JWST NIRCam image of SN 1987A, the remnants of a supernova in the Large Magellanic Cloud

Hello again Science Fans!

This year is a leap year, when one day is added to the calendar to account for the difference between the tropical year and the common year. The tropical year is the time it takes Earth to make one complete orbit around the Sun, or 365 days, 5 hours, 48 minutes, and 45 seconds. It would be pretty difficult to have a calendar that matched that exactly, so we use the common year length of 365 days. That means we fall slightly behind the actual year by almost 1/4 day. So every 4 years (with exceptions) we add one day to the calendar, that being February 29, to get back in synch, more or less.

Back in the day, namely 46 BC, the Julian cal


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