8 banned children’s toys from yesteryear

by Laura Domela

1. Gilbert U-238 Atomic Energy Lab
Only available from 1951–1952, this science kit for CHILDREN included four types of uranium ore, a Geiger counter, a comic called Dagwood Spits the Atom, and a coupon for ordering MORE radioactive materials. One of the four uranium ores included was Po-210 (Polonium) which, by mass, is 250,000 times more toxic than hydrogen cyanide. “Merry Christmas, Kevin, here’s that giant box of poison you asked for.”
via Buzzfeed

DEFINITELY worth checking out the rest of this list here

Quickly and accurately identify inter-domain leakage issues in IC designs

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Power domain leakage is a major IC reliability issue, often missed by traditional tools. This white paper describes challenges of identifying leakage, types of false results, and presents Siemens EDA’s Insight Analyzer. The tool proactively finds true leakage paths, filters out false positives, and helps circuit designers quickly fix risks—enabling more robust, reliable chip designs. With detailed, context-aware analysis, designers save time and improve silicon quality.

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featured chalk talk

Designing Scalable IoT Mesh Networks with Digi XBee® for Wi-SUN

Sponsored by Mouser Electronics and Digi and Silicon Labs

In this episode of Chalk Talk, Quinn Jones from Digi, Chad Steider from Silicon Labs and Amelia Dalton explore how Wi-SUN Micro-Mesh can reduce cost and simplify deployment for your next IoT mesh network. They also investigate the benefits that Digi XBee solutions bring to these types of networks and how you can jump start your next IoT mesh network design with Silicon Labs and Digi.

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May 4, 2026

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8 banned children’s toys from yesteryear

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