The first loudspeakers designed to alert pedestrians of approaching electric vehicles (EVs) are now being produced. What happens if most cars are electric? More noise seems counterproductive - is there a better system?
The preceding article is a "sneak peek" from Automotive Technology, a newsletter
10 years ago, you could buy the 

Emily writes, “Ever since I was a kid, I have had a love for astronomy. I studied Earth and Planetary Sciences in college and am now in graduate school, studying to be a middle school science teacher. Another love I had as a kid was reading Calvin and Hobbes. My science tattoo combines these two childhood loves — with Calvin and Hobbes looking up at the 8 planetary symbols and the symbols for a star and water. Just like Calvin and Hobbes, I will always be gazing up at the sky with wonder and awe.”
Why bore your fish with a humdrum aquarium when you can house them in the Spillarium, a spherical 5 gallon tank that features color-changing LED lights and a spilling waterfall that plunges into a bigger fish's ceramic maw.

Everyone is clamoring about tablets these days—







If you're on terra firma, it's pretty obvious when you need to grab your make-out partner. But how, asks Slate's Explainer, do you know when to celebrate "when you're hurtling through time zones at 17,500 miles per hour?"