How Mood Rings Work
Mood rings famously are meant to change color to reflect the mood of the wearer. Some are cheap and ugly. Some are expensive and set in precious metal. All work using the same mechanics.
Mood rings first became a fad in the seventies. The rings consisted of circular "stones" set on metal bands. The stones were supposed to change color depending on the mood of the wearer. The stones measured the heat coming off the body of the wearer. In theory, this had something to do with their mood, since stress or fear tends to send the blood away from the extremities and cool them down. In fact, the color of the stone probably had more to do with body chemistry and whether or not its wearer had just been holding a cup of hot soup.
Giving our solar system a "slap in the face."
- A stream of galactic debris is hurtling at us, pulling dark matter along with it
- It's traveling so quickly it's been described as a hurricane of dark matter
- Scientists are excited to set their particle detectors at the onslffaught
The climate change we're witnessing is more dramatic than we might think.
Once again, our circadian rhythm points the way.
- Seven individuals were locked inside a windowless, internetless room for 37 days.
- While at rest, they burned 130 more calories at 5 p.m. than at 5 a.m.
- Morning time again shown not to be the best time to eat.
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