Did you known that today is CREATE A VACUUM DAY??
It's a weird day for pets as our families NEED to vacuum but that vacuum is A WEIRD DEVIL THING.
Let's talk about the history and science of vacuums! #CreateAVacuumDay
Back in ancient Greece, some scholars thought vacuums were just a myth!
One philosopher, Democritus, saw things differently.
He believed there was a void between atoms and referred to it as a vacuum.
Fast forward a few thousand years to Galileo Galilei.
Galileo's pump makers told him they could only pump water to 30 feet, but couldn't pull it out of a well more than that distance.
His student Torricelli, had a brilliant idea!
They switched to using mercury, which is 13 times denser, and found that when they filled a tube with it and placed it in a dish, the mercury dropped by 0.39 inches.
This showed that a vacuum had been created (and later a unit to measure vacuum's was called a Torr!)
Vacuum Examples!
Have you ever been on a plane and noticed how your ears pop as the plane ascends or descends?
That's because the air pressure is changing due to changes in altitude.
Did you know that there's no air in outer space?
It's close to a perfect vacuum, which makes it a unique environment for astronauts to work in.
It's also REALLY dangerous as any hole in a spacecraft causes AIR to rush out into that near perfect vacuum.
The next time you use your smartphone, think about this: it uses vacuum technology to keep dust and debris from getting inside.
Microprocessor chips are also built in a vacuum to create an environment free of impurities!
Hey!
Can you tell if you cat is happy?
YEP!
Here are FIVE ways to tell if your cat is happy!
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1. What your cat sounds like!
If you’ve ever had a conversation with your cat, it’s a sign that they are happy!
Sure, they may be DEMANDING things of you, but it shows they are content and comfortable to be vocal with another species!
While the pitch of a meow is TOUGH to make a conclusion about, a higher pitched meow is associated with a happier cat, while a low pitched meow could be annoyance or frustration.
A hug a day may literally keep the doctor away.
🤗
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HISTORY:
The word HUG comes from the Old Norse word "hugga" meaning to comfort.
It is a way to share body warmth, which would have been helpful for survival.
You need two hands to hug, thus it's hard to hold a weapon.
Babies NEED hugs and do poorly without them.
HUG POWER 1: Increases feelings of safety
The hug decreases anxiety about the world.
A hug has been shown to affect our fearfulness too. It is easier to relax after a hug.
Did you know that today is National Squirrel Appreciation Day?
Yes, dogs have a love hate relationship with these critters, BUT, they are pretty cute and amazing!
It's time for a THREAD about Squirrels!
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Squirrel Biology 101:
They're small to medium-sized rodents in the family Sciuridae.
Most closely related to the BEAVER!
Omnivorous diet primarily of nuts, seeds, fruits, and insects.
Have a litter of 2-5 babies once or twice a year!
Squirrel Super Powers:
Known for agility, ability to climb trees, and caching food for later consumption
Some species have a patagium, allowing them to glide through the air
Make split-second calculations to balance trade-offs between branch bendiness and distance!