Vines by Terry Virts Aboard the ISS.



Astronauts don’t typically drink soda or other carbonated beverages while in space. The reason is probably apparent if you watch this new video of an effervescent tablet in water on the space station (or, you could watch the older classic one from Don Pettit). Unlike on Earth, where the carbon dioxide bubbles are buoyant and rise to the surface, the bubbles in a fluid in microgravity are randomly distributed. Those few bubbles that happen to be located along the edge of the water sphere will sometimes burst, creating the halo of tiny droplets you see in the video. In the case of sodas, though, the bubbles’ behavior creates a foamy mess, and, after ingestion, the bubbles are stuck travelling through the astronaut’s digestive system instead of getting burped out. Sounds rather unpleasant to me. (Video credit: NASA; submitted by entropy-perturbation and buckitdrop)


LAST CALL: Help us do some science! I’ve teamed up with researcher Paige Brown Jarreau to create a survey of FYFD readers. By participating, you’ll be helping me improve FYFD and contributing to novel academic research on the readers of science blogs. It should only take 10-15 minutes to complete. You can find the survey here.

How much do you know about Hippocrates and the Hippocratic corpus?

How much of your knowledge about the Hippocratic Corpus came from binge-watching multiple series of Grey’s Anatomy? Hippocrates is most famous for the Hippocratic Oath which is still used today - “First of all, do no harm” - although it has been modernised. But what else is significant about the Hippocratic corpus? In Classical Philosophy: A History of Philosophy Without Any Gaps, Peter Adamson explores the anatomy of the Hippocratic Corpus:

  1. The Hippocratic corpus is made up of over sixty writings ascribed to Hippocrates but we do not know if he actually wrote any of them.
  2. The Hippocratic corpus stated that an imbalance of the 4 humours (blood, phlegm, yellow bile and black bile) caused illness.
  3. Although Hippocrates’ theories lead away from religion influencing health, it is likely that Hippocrates and his followers would have accepted religious practises around disease.
  4. Hippocrates was not the first to suggest theories on health away from religion; Empedocles and Philistion also suggested that sickness was brought about by an imbalance of elements.
  5. Diet was very important to doctors who followed Hippocrates’ theory of the four humours. Eating a healthy diet would supposedly rebalance the amount of each humour in your body.
  6. The English adjectives sanguine, phlegmatic, and melancholy come from and relate to three of the four humours.

If you want to make sure there are no other gaps in your philosophy knowledge, you can follow Peter Adamson on Twitter, listen to his podcasts, or check out the first instalment of the History of Philosophy Without Any Gaps.

Image: Hippocrates, by Raed Mansour. CC-BY-2.0 via Flickr.

Here’s a
What’s In My Schoolbag:
•North Face backpack with Alpha Xi Delta pins
•The Totally Tortoise collection, studio C file folder from Target
•Buckhead Betties pencil pouch
•miscellaneous post-it notes
•3 hole punch
•TI-83 Plus calculator
•caliber scientific calculator
•Forever 21 umbrella
•4 binders
•Staedtler triplus fineliners
•Lilly Pulitzer planner


Experimentalist VS Theorist on Einstein’s General Theory of Relativity

Einstein’s theories provided elegant explanations for existing phenomena—but he didn’t quite hit the big time until experiments during a solar eclipse verified some of the predictions of his general theory of relativity. In this clip from the 2015 World Science Festival program “Reality Since Einstein,” physicists Andrew Strominger and Steven Weinberg discuss the historic tension between theorists and experimentalists in science with moderator and fellow physicist Brian Greene.

By: World Science Festival.
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funnyfoxes55 heeft gevraagd:

Why is Pluto considered to not be a planet? I understand there is some controversy over this and I just came to understand a bit more about Pluto.

Always a good question and always one that seems to pop up a lot! 

Instead of going through the points again, thankfully I’ve done a post on this in the past. 

Check it out here: Why is Pluto no longer considered a planet?

- Konner

After a bit of research, I learned that the dark patches on the #moon are the seas - Seas of: Cold, Rain, Serenity, Storms, Vapours, Tranquility, Crises, Clouds, Fertility, Nectar, and Moisture. Early astronomers thought they were actual seas when really they’re just huge plains formed during lunar volcanic activity, and I think that’s pretty awesome. #astronomy #physics #space


Infinite Minute#12: What is Gravitational Lensing?

I recently made this short video for a teacher wanting to demonstrate how gravitational lensing works by simulating a Saturn-sized black hole passing through the inner harbor of Baltimore.

By: Deep Astronomy.
The LHC’s latest results deliver another blow to supersymmetry - ScienceAlert

By smashing subatomic particles together using the Large Hadron Collider (LHC) in Switzerland, researchers have now calculated exactly how often that happens, and found that only bottom quarks with a left-handed spin decay into an up quark. And that’s exactly what the Standard Model, but not the supersymmetry hypothesis, predicts.
The LHC’s latest results deliver another blow to supersymmetry
Researchers at CERN have provided new insight into the behaviour of the tiny subatomic particles that make up protons and neutrons, called quarks , and they're consistent with the traditional Standard Model of particle physics. That's great news...
Door Fiona MacDonald

Sometimes, the truth hurts. This is good news for the Standard Model, as it’s yet further confirmation of the validity of the theory, but bad news for supersymmetry enthusiasts. However, these results from CERN suggest that the universe may be much more exotic and mysterious than we may have imagined.

Seeking Advice

I am currently a college student working on my undergrad in physics and astronomy. I chose this path a long time ago and have never found a reason to do anything else.

My current school isn’t working for me the way I want it to. I’ve even gone so far that I’m struggling to maintain a decent GPA. I don’t feel inspired here and the guidance I seek out usually stops at telling me to change my major with the reasoning that I “might not be cut out for physics. Not everyone knows where they’re going and its ok for life to take an unexpected direction.”

My problem is that I’ve had this dream for most of my life and have never stopped wanting it. Running into the financial issues that come with a suffering GPA have taken their toll so that I have started hating my school life more and more with each passing day. I feel like I’m stuck in one place not moving in the direction I want because the way ahead wasn’t built for me to navigate.

I’ve looked at other schools out of state that offer more of what I want but I will end up drowning further in debt because of the higher prices.

Should I transfer? Is there a way to improve my current predicament?

I don’t know what to do.


Thermal Equlibrium

Paul Andersen explains how objects in contact with varying temperatures will eventually reach thermal equilibrium with equal temperatures. The amount of thermal energy transferred is related to the mass and temperature of the objects since momentum is transferred and conserved along the margin.

By: Bozeman Science.
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