A-perfect-Vacuum

anonymous asked:

I find it really amusing that Laurens painted and drew things, I wonder if there's any records of anything the founding fathers drew.

Thomas Jefferson’s macaroni machine. 

Franklin drew a doodle of the perfect Vacuum- a Torricellian tube.

Doodles in Ben Franklin’s copy of Proceedings of the Continental Congress 1783-1784.

Here is a picture of a penis that someone drew and sent to James Monroe with: (i.e. cock). You are worthy of the appointment and it is worthy of you. Yours intimately, J. Jinglebolloc.

Hurra for the shitter presidents 

Invincibility Journal Vol. 1

Day 1

Today I discovered I was invincible. Actually, it was more like a year ago. I didn’t want to write it down until we were sure what it was. My wife told me it’d be good to keep up a journal.

I’ve always been a healthy person, but I didn’t know just how healthy. Last May I fell down the stairs, like… all of them. My wife took me to the doctor, and they told me everything was fine.

“I told you so.” I told my wife. But that was just the beginning.

Later, government agents and scientists from around the world started testing on me. Nothing could penetrate my skin, or break my bones. I am immune to heat, cold, electricity, fire, radiation, impact, acceleration, deceleration, over 4000 poisons, over 50,000 diseases and perfect vacuum.

After that, they set me free with thousands of different offers and contracts. For now I’m gonna stay home.

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Technological development means the ruin of culture? It provides freedom where hitherto reigned the constraint of biology? But of course it does! And instead of shedding tears over our captivity, we should hasten our step to leave its dark house. And therefore (the finale begins, in cadenced conclusions): everything that has been said about the threat to time-honored culture by the new technology is true. But one need not be concerned about this threat; one need not patch together a culture coming apart at the seams, or fasten down its dogmas with clamps, or hold out valiantly against the invasion of our bodies and our lives by superior knowledge. Culture, still a value today, will tomorrow become another value: namely, anachronistic. For culture was the great hatchery, the womb, the incubator in which discoveries bred and gave agonizing birth to science. Indeed, just as the developing embryo consumes the inert, passive substance of the egg white, so does the developing technology consume, digest, and turn into its own stuff - culture. Such is the way of embryos and eggs.
—  Die Kulture als Fehler, A Perfect Vacuum, Stanislaw Lem.

Alolan Exeggutor is one of the sillier pokémon this generation. This guy measures in at 10.9 meters tall, nearly 36 feet! As a result, Alolan Exeggutor hardly fits on the 3DS screen.

Obviously, Alolan Exeggutor is based on a Palm Tree. Different species of palms can grow to different heights: the Quindio wax palm, for example, is the tallest species in the world: it can grow up to 60 meters tall (197 feet). For reference, the tallest Redwood tree in the world is only 114 meters tall (379 feet). Palms can grow half as tall as Redwoods! Here is a picture of some Wax Palms, with a person for scale: 

Despite this, palm trees aren’t really trees. They’re more closely related to grass than to trees. For example, the trunk of a palm tree does not have any bark outside of it, or rings inside of it. A palm tree grows upwards, not outwards, which means it’s not really a tree.

According to the pokédex, when Exeggutor grew taller and taller, it “awakened the power of the sleeping dragon”, and therefore swapped its psychic-typing out for dragon. But, what does that mean? It’s a bit vague for a pokédex entry, but we wouldn’t be the Scientific Pokédex if we didn’t explain this.

For one, Exeggutor might be based on the Dragon Tree, native to Hawaii. This plant has dark red sap called “dragon’s blood”, which is where it gets its name from.

In my opinion, however, simply having dark red sap can hardly be “the power of the sleeping dragon” that Exeggutor was able to harness. Instead, I’d like to talk about one of the coolest superpowers of tall trees: their ability to transport water from their roots up all the way up to their leaves.

Plants have tissue called xylem to transport water from the roots upwards into the leaves. Gravity is trying to pull the water downwards, so sucking it up is quite the feat. In fact, if you had a really long straw, the farthest you could suck up water would be 9.8 meters. This would create a perfect vacuum in the straw, and beyond that you can’t generate enough pressure to fight gravity. Not to mention the water at the top would boil due to the low pressures.

Yet we’ve shown trees that are hundreds of meters tall. In order to suck up water to that height, these trees create pressures below a perfect vacuum: they create negative pressures. That’s right, the inside of a tree has a lower pressure environment than literally outer space. The tops of redwoods can have a pressure as low as -15 atm. For reference, Earth’s atmosphere is 1 atm of pressure, and a perfect vacuum is 0 atm. That’s what I call the power of the sleeping dragon.

The xylem creates this pressure essentially by evaporating water through the leaves at the top. Water leaves the leaves, which pulls up the water molecules underneath it in a process called transpiration. Up to 95% of the water that enters a tree is evaporated in this way to create the astronomical pressure difference. Only 1% is ever used in photosynthesis, and the rest is used for making new cells.

Normally in these conditions, liquid water would instantly evaporate. However, since the water was liquid when it entered the base of the tree, unless it is disturbed it will stay in a delicate, unstable meta-liquid state. Much like when you take water out of a freezer, sometimes it won’t turn to ice until you shake it up. Trees preserve this delicate balance until the water can evaporate through the leaves.

Alolan Exeggutor is a species of palm, which is more closely related to a grass than a tree. As it grows taller, Exeggutor must create pressures lower than the vacuum of space to supply water to the leaves at the top.

anonymous asked:

DAAAAAAAN!!! I got my Physics final a week from today!! I'm going to study my ass off this weekend and into next week but I am never going to be prepared for this test!

You can do it friend. You can do it. I believe in you, perfect frictionless surfaces believe in you, perfect vacuums believe in you. YOU CAN DO IT. BELIEVE IN THE ME THAT BELIEVES IN YOU

The moon had been observing the earth close-up longer than anyone. It must have witnessed all of the phenomena occurring - and all of the acts carried out - on this earth. But the moon remained silent; it told no stories. All it did was embrace the heavy past with a cool, measured detachment. On the moon there was neither air nor wind. Its vacuum was perfect for preserving memories unscathed. No one could unlock the heart of the moon. Aomame raised her glass to the moon and asked, “Have you gone to bed with someone in your arms lately?”
The moon did not answer.
“Do you have any friends?” she asked.
The moon did not answer.
“Don’t you get tired of always playing it cool?”
The moon did not answer.
—  1Q84 by Haruki Murakami
The moon had been observing the earth close-up longer than anyone. It must have witnessed all of the phenomena occurring - and all of the acts carried out - on this earth. But the moon remained silent; it told no stories. All it did was embrace the heavy past with cool, measured detachment. On the moon there was neither air nor wind. It’s vacuum was perfect for preserving memories unscathed. No one could unlock the heart of the moon.
—  1Q84 by Haruki Murakami
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Rocking chair progress video - Getting the Maloof joints started for the back legs. This shows why I love to glue up using a vacuum bag, perfect tight glue line! Macassar Ebony between Canadian Black Walnut. Almost time to get my carve on 😋

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MBTI Compatibility

I’ve been meaning to write this for a while, but I usually got interrupted or bored halfway through. Today I’d like to talk a bit on the subject of compatibility. We’ve all seen these types of asks before asking about basic compatibility, to how to tell if another type likes them, to how to impress a certain type, etc. Compatibility seem to make up a good proportion of MBTI asks in general. And really, it’s not surprising. People want to know if their squishes/crushes/established relationships can last the span of time. I’d like to cover a few things about basic compatibility that I think it’s good to know in general before going down that route.

First off, let me say that regardless of what anybody says, certain type combinations do share more compatibility than others. This is because of shared preferences. Types that share the same judging pairs (Fe-Ti/Fi-Te) or perceiving pairs (Si-Ne/Se-Ni) usually have a good rapport with each other. It is upon these preferences that compatibility posts/articles are based off of. However, it is good to take every compatibility post with a bit of caution.

Compatibility is nothing better than an experiment performed under perfect conditions. Compatibility is usually based upon the presumption that both types are functioning properly and optimally. There are no toxic functions, no loops, no immaturity, nothing. Like a physics experiment performed in a vacuum, perfect success is always guaranteed.

The thing with MBTI types in general is the realization that your type is not a cookie cutter. You will never fulfill every single part of a type description. Enneagrams, toxic functions, loops, developed and under developed functions, upbringing, beliefs, values—these all bring complexity to an individual. These are the the external factors that that throw off the perfect equation of compatibility. It is because of these things that some people find no compatibility with types they should be getting along wonderfully with.

Like your weekly weather forecast, compatibility is meant to point you in the right direction, but it also has a good chance of being wrong. It can lead you to bring a metaphorical umbrella to sunny skies and light clothes to a downpour. This is the reason why most blogs say that a pairing between any type is possible. Regardless of supposed compatibility, every relationship takes work to be successful.

komradekrispy  asked:

Can you kill a star?

yes, like any fusion reaction a star can theoretically be stopped before reaching exhaustion of the limiting reactant by a massive force or anti matter. Stars are basically plasma and gas, not really a giant fire, adding more mass to them only increases the reserves of what element they are crushing together to form another element, (hydrogen being fused to create helium in the case of our sun currently) you would need some way to siphon and use up all the helium produced so the sun would have no way to switch over to helium fusion when it runs out of hydrogen, but we are still talking billions of years here. you would need to somehow remove the very core of the sun, which would be very hard to do. 

You would need some way to manipulate gravity to siphon the core of the sun out, to eject the suns core and basically suck it up, like a blackhole of some kind, then again, its gonna do a lot more than just that star, you would take out that entire solar system and start sucking in nearby stars.  it would be akin to dropping an atomic bomb to kill a single ant.

Antimatter would be the way to go, the reaction and annihilation event that would occur would be catastrophic, you would need so much antimatter, and theres nothing quite as dangerous and unwise as a weapon that requires constant suspension inside a perfect vacuum using gravitational forces at all times, or else you risk blowing up your entire planet. how one would contain and produce antimatter on that level is unknown, we don’t know that much about it, we know far more about the theory of evolution than we know about the theory of gravity.  you get into some quantum physics and advanced stuff that is way beyond my scope at that point. 

really, its a lot easier to ruin all the planets around a star than it is to destroy a star itself. 

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(Inspired by morkaischosen’s comment on a previous post about Rincewind becoming the DADA professor at Hogwarts, i.e. that he’d most likely have to leave the job quite suddenly. Come to think of it, if Rincewind ended up teaching Harry’s third year instead of Lupin, the wizzard’s successor during the fourth year would be the only person who can rightfully be called even more paranoid than Rincewind himself.) ;-)

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“The moon had been observing the earth close-up longer than anyone. It must have witnessed all of the phenomena occurring - and all of the acts carried out - on this earth. But the moon remained silent; it told no stories. All it did was embrace the heavy past with a cool, measured detachment. On the moon there was neither air nor wind. Its vacuum was perfect for preserving memories unscathed. No one could unlock the heart of the moon. Aomame raised her glass to the moon and asked, “Have you gone to bed with someone in your arms lately?”
The moon did not answer.
“Do you have any friends?” she asked.
The moon did not answer.
“Don’t you get tired of always playing it cool?”
The moon did not answer.”

Haruki Murakami, 1Q84