The strange ways we used to calculate pi — How fish escape lightning strikes
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A note from my sponsor

3 reasons ExpressVPN beats the competition

There are tons of VPN providers out there. You’ve probably heard of a couple of them — and some of you may have even used a VPN before. But I like to do research on my sponsors and I can say with full confidence that ExpressVPN is the best one on the market. Here's why. 

First, ExpressVPN doesn’t log your data. Lots of really cheap or free VPNs make money by selling your data to ad companies. But ExpressVPN developed a technology called Trusted Server that makes it impossible for their servers to log any of your info. 

Second, it's all about speed. I've been using ExpressVPN for a while now, and my internet speeds are blazing fast. Even when I connect to servers thousands of miles away, I can still stream HD quality videos with zero lag. 

The last thing that really sets ExpressVPN apart from other VPNs is how easy it is to use. You just fire up the app and click one button to connect. Protect yourself with the VPN that I use and trust.

Go to ExpressVPN.com/Kim and get three extra months free.

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Tips and tricks to use your Amazon Echo like a pro

Your Amazon Echo can do so much more than answer your questions. In my eBook, "How to Use Your Amazon Echo: Tips and Tricks," you'll learn everything you need to know to become a pro. I'll show you how to set it up all the way to how it can endlessly entertain you in your living room, your kitchen and your bedroom. You will also learn the necessary tools to have your Amazon Echo help you in an emergency.

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