Learning About Wireless Charging


Picture a world with no tangled charging cables, the ability to charge mobile devices almost anywhere, and wireless kitchen appliances. That probably sounds like something out of a Jetsons cartoon, but it’s a world we’re moving toward at increasing speed. The idea of wireless power is not a new one. Nikola Tesla experimented with wireless power as early as the 1880s1, and Oral-B’s rechargeable toothbrushes have used wireless inductive charging since the early 1990s.2

There’s a lot of science behind wireless charging, also called inductive charging, but I’ll try to explain the basics as simply as I can. If you don’t care how it works, go ahead and skip to the next paragraph. In essence, an electromagnetic field is used to transfer energy between two objects. A charging pad has a transmission coil that converts a regular alternating current into an electromagnetic field. The receiving device has a receiving coil that converts the electromagnetic energy back into electrical current that the device uses to charge its battery. [Read more…]

Is SanDisk’s 512 GB SD Card Vulnerable?

First, a brief history of SD Cards.

SD card

Way back in 1999 SanDisk, Toshiba and Panasonic launched a new player in the memory card game. These SD cards were based on an earlier card format, called MultiMedia Cards (MMC), created by SanDisk and Siemens a few years earlier. Today, despite their high level of market saturation, many people aren’t aware that SD stands for Secure Digital, and even fewer people are aware that the word “secure” in the name refers to its ability to store encrypted music data. The original incarnation of SD cards had a storage capacity that maxed out at 2 gigabytes. [Read more…]

Learn About Smart Home Technology


One of the new trends in technology is the “smart home.” While the industry is still mostly in the “early adopter” phase, prices are coming down and availability is going up. Most of the smart home technology falls into one of five categories: home access, appliances, lighting and climate control, home communications, and home entertainment. [Read more…]

Wearable Technology


You don’t have to be the “most connected man in the world” to use wearable technology these days. In our society, there are hundreds of devices that fall into the category of wearable technology. Even watches and headphones are technically wearable tech, but in recent years, we’ve seen a huge surge in both the use and usefulness of different types of wearable technology. I’m not even going to attempt to make a full list of wearable technology, just discuss a few of the types that have increased in common usage (and a few that are just plain interesting). [Read more…]