Revisions Log

A log of revisions to articles and news stories.

May 12 2025 - The content of this article has been updated to include the most up-to-date research findings and correct previous inaccuracies. Sections added to pad it out, including, "How LEDs Work", "Anatomy of an LED".

What are Light Emitting Diodes?

Apr 7 2025 - Revised the original article on medical sensor technology to provide a more comprehensive, up-to-date overview of the role sensors play in modern healthcare. The updated version expands beyond foundational definitions to include current advancements in wearable, environmental, and implantable sensors, with added focus on their applications in physical and mental health, rehabilitation, and chronic disease management. New sections emphasize the integration of AI, emerging materials, and smart environments. The article now includes recent research findings, real-world examples, and credible academic references to enhance scientific accuracy and reader engagement.

How Sensors Can Keep You Healthy

Mar 31 2025 - Revised the description of Apeel Sciences to correct the inaccurate claim that its plant-based coatings contain embedded sensors—clarifying instead that the coatings are made from commonly used food ingredients and are edible, tasteless, and designed to slow spoilage.

Food Sensors, Explained: Smarter Safety from Farm to Fork

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