It's time to buy the dip on Bitcoin yet again. Since Oct. 6, Bitcoin (BTC +2.83%) is down 25% from its all-time high of $126,000 as I write this on Nov. 18. As a result, the world's most popular cryptocurrency recently turned negative for the year, and skittish investors are already starting to bail. But...

Technology By  Nov. 22, 2025 6:45 pm EST Concrete is everywhere. It's the second most used material in the world after water, and can be found in buildings and infrastructure in every corner of the globe. Scientists at Aarhus University in Denmark recently published a study that could reshape the way that...

There's a whole lot of goodness to look forward to next week, but Black Friday sales are already in motion. As one of the deals experts here at Yahoo, I've been tracking all the sales. For the past couple of weeks, Amazon has been dropping prices — and some of the biggest markdowns are starting...