nocturneYSK Your smoke detectors should be replaced every 7-10 years
GorkThis is only true for the Americium based smoke detectors. The newer photoelectric cell fire detectors don’t decay like Americium detectors, and as long as you replace the battery it’ll be good for however long it’s internal components (capacitors and whatnot) will last.
Technology Connections has a good video about this subject:
There are two types of smoke alarm. One of 'em ain't so good.
wonderingwandererA motion to rename every element that’s named after a place. All in favor updoot, all opposed downdoot
Okay, let’s start with Helium (named after the sun)
That’s a celestial object, not a place. The sun is traveling at 230 km/s around the galaxy. It’s not a “place.”
The sun is a place. The moon is a place. Earth is a place. A specific location on the earth is also a place.
Anything you insert into a sentence describing the origin point of something traveling is a place.
Okay, then how about renaming every element that’s named after a nation-state?