What Happened In 4 Hours Is Sped To 1 Minute. #SuperBlueBloodMoon

The mineral component of bone is comprised mostly of the calcium phosphate mineral hydroxyapatite which is embedded in the organic component type I collagen. When bone is exposed to a mildly acid environment the mineral component leaches out leaving only the pliable organic component. Vinegar is safe to use and does not destroy the protein scaffolding that gives bone it’s characteristic shape. This is a human fibula tied in a knot.

1000-year-old Japanese joinery techniques that don’t require any nails or glue. e.g. Kengo Kuma building: https://youtu.be/5tFf8BtUV9s by DeMilked

Quantum tunnelling

Tunneling is a quantum mechanical effect. A tunneling current occurs when electrons move through a barrier that they classically shouldn’t be able to move through. In classical terms, if you don’t have enough energy to move “over” a barrier, you won’t. However, in the quantum mechanical world, electrons have wavelike properties. These waves don’t end abruptly at a wall or barrier, but taper off quickly. If the barrier is thin enough, the probability function may extend into the next region, through the barrier! Because of the small probability of an electron being on the other side of the barrier, given enough electrons, some will indeed move through and appear on the other side. When an electron moves through the barrier in this fashion, it is called tunneling.

Quantum mechanics tells us that electrons have both wave and particle-like properties. Tunneling is an effect of the wavelike nature.

The top image shows us that when an electron (the wave) hits a barrier, the wave doesn’t abruptly end, but tapers off very quickly - exponentially. For a thick barrier, the wave doesn’t get past.

The bottom image shows the scenario if the barrier is quite thin (about a nanometer). Part of the wave does get through and therefore some electrons may appear on the other side of the barrier.

Because of the sharp decay of the probability function through the barrier, the number of electrons that will actually tunnel is very dependent upon the thickness of the barrier. The current through the barrier drops off exponentially with the barrier thickness

Source: nanoscience.com | Images: x | x | x

When ur stoned and get the most fucked up snapple fact ever

whoa this guy knows how to party

It’s sad how much of what is taught in school is useless to over 99% of the population.

There are literally math concepts taught in high school and middle school that are only used in extremely specialized fields or that are even so outdated they aren’t used anymore!

Do you ever think about Doggerland?

Like how fucked up is it that it’s just….. gone.

I tend to forget about it and then when I remember it again I’m like “Oh yeah! There’s like an entire country sized stretch of land that’s just fucking GONE.

well…. “gone”….

palaeoart

Finally got my new air compressor hooked up and we’re back in business on the fossil prep front. First up in the queue was the removal of the excess matrix and cleaning up on this Peronoceras subarmatum which I found on the Jurassic Yorkshire Coast a few months ago. I’ve been out of action on fossil prep for nearly 4 months so it’s nice to be back up and running

to all my researchers, students and people in general who love learning: if you don't know this already, i'm about to give you a game changer

connectedpapers

the basic rundown is: you use the search bar to enter a topic, scientific paper name or DOI. the website then offers you a list of papers on the topic, and you choose the one you're looking for/most relevant one. from here, it makes a tree diagram of related papers that are clustered based on topic relatability and colour-coded by time they were produced!

for example: here i search "human B12"

i go ahead and choose the first paper, meaning my graph will be based around it and start from the topics of "b12 levels" and "fraility syndrome"

here is the graph output! you can scroll through all the papers included on the left, and clicking on each one shows you it's position on the chart + will pull up details on the paper on the right hand column (title, authors, citations, abstract/summary and links where the paper can be found)

you get a few free graphs a month before you have to sign up, and i think the free version gives you up to 5 a month. there are paid versions but it really depends how often you need to use this kinda thing.