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Thirty years ago, hunting scopes (a.k.a. rifle scopes) were pretty much optical devices that helped to zero-in on a target for a better shot. There were no electronics involved. Today, though, some scopes are complex...

It was 2005 when a group of students from Italy came up with a revolutionary microcontroller and the software to run it. They called their project Arduino. It was an instant hit and made it...

Alkaline batteries have been around for so long that plenty of adults do not remember a time before they were readily available. What's more, society has spent the better part of 60 years buying alkaline...

Earth Day rolls around every 22nd of April. As this post is being written, Earth Day 2023 was just a few days ago. And as is the case every year, we saw a ton of...

Battery-operated toys can be the bane of a parent's existence. That notwithstanding, most toys requiring batteries don't come with batteries included. Even those that do come with batteries do not come with lithium-ion batteries. They...

It's interesting how a person's understanding of a particular topic is directly related to personal experience. Take batteries. Most consumers don't know how many different types of batteries are out there. Why? Because our knowledge...

The most notable difference between NiCad and lithium-ion batteries is their internal chemistry. Every battery needs an anode, cathode, and electrolyte. Without all three, you get no power.

Are you familiar with the old idiom, 'waste not, want not'? It is an expression to denote the fact that you will not want something new if you don't waste what you already have. Think...

As this post is being written, there is only one more week of winter remaining. Spring is on the doorstep. And for those of us at Pale Blue Earth, it is time to get ready...