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January 07 2018

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January 05 2018


January 01 2018

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October 27 2017

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September 28 2017

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September 12 2017

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September 09 2017


When Pixels Collide

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August 12 2017

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Computers vs Humans
It's hard to train deep learning algorithms when most of the positive feedback they get is sarcastic.
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August 04 2017

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zero light plants


July 23 2017


July 20 2017

Turn the page - the easy way
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June 24 2017

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June 03 2017

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May 28 2017


18 Science Facts We Didn't Know at The Start of 2017

We've learned so much already.

BEC CREW 26 MAY 2017

1. Lungs don't just facilitate respiration - they also make blood. Mammalian lungs produce more than 10 million platelets (tiny blood cells) per hour, which equates to the majority of platelets circulating the body.

2. It is mathematically possible to build an actual time machine - what's holding us back is finding materials that can physically bend the fabric of space-time.

3. Siberia has a colossal crater called the 'doorway to the underworld', and its permafrost is melting so fast, ancient forests are being exposed for the first time in 200,000 years.

4. The world's first semi-synthetic organisms are living among us - scientists have given rise to new lifeforms using an expanded, six-letter genetic code. 

5. Vantablack - the blackest material known to science - now comes in a handy 'spray-on' form and it's the weirdest thing we've seen so far this year.

6. It's official: time crystals are a new state of matter, and we now have an actual blueprint to create these "impossible" objects at will. 

7. A brand new human organ has been classified, and it's been hiding in plain sight this whole time. Everyone, meet your mesentery.

8. Carl Sagan was freakishly good at predicting the future - his disturbingly accurate description of a world where pseudoscience and scientific illiteracy reigns gave us all moment for pause.

9. A single giant neuron that wraps around the entire circumference of a mouse's brain has been identified, and it appears to be linked to mammalian consciousness. 

10. The world's rarest and most ancient dog isn't extinct after all - in fact, the outrageously handsome New Guinea highland wild dog appears to be thriving.

11. Your appendix might not be the useless evolutionary byproduct after all. Unlike your wisdom teeth, your appendix might actually be serving an important biological function - and one that our species isn't ready to give up just yet.

12. After 130 years, we might have to completely redraw the dinosaur family tree, thanks to a previously unimportant cat-sized fossil from Scotland.

13. Polycystic ovary syndrome might actually start in the brain, not the ovaries.

14. Earth appears to have a whole new continent called Zealandia, which would wreak havoc on all those textbooks and atlases we've got lying around.

15. Humans have had a bigger impact on Earth's geology than the infamous Great Oxidation Event 2.3 billion years ago, and now scientists are calling for a new geological epoch - the Anthropocene - to be officially recognised.

16. Turns out, narwhals - the precious unicorns of the sea - use their horns for hunting. But not how you'd think.

17. Human activity has literally changed the space surrounding our planet - decades of Very Low Frequency (VLF) radio communications have accidentally formed a protective, human-made bubble around Earth.

18. Farmers routinely feed red Skittles to their cattle, because it's a cheap alternative to corn. ¯\_(ツ)_/¯

18 Science Facts We Didn't Know at The Start of 2017 - ScienceAlert
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Morse Code A Visual Guide

sammiwolfe important to our lives lol XD

Oh oh my god now Morse code actually makes SENSE when you lay it out like that


This is also nice, if you want to decode morse code quickly. 

that avl tree though

That’s not a coincidence! Naturally, it’s less work to transmit shorter sequences of dots and dashes, so we try to use up all the shorter sequences first. Basically, this means that we fill in all the branches at one level of this tree before moving onto the next. The result is a perfectly balanced decoding tree. 

The placement of the letters is also far from arbitrary. Here are all the letters in English ordered from most common to least common: 


Notice something? The shortest morse code sequences were assigned to the most common letters. This makes the common letters easier to remember, and makes messages as short as possible in the average case.

Numbers are sort of an exception to this. All numerical symbols are encoded with 5 dots and dashes. But there’s a pretty clear pattern to these as well. 

1 = .—-

2 = ..—

3 = …–

4 = ….-

5 = …..

6 = -….

7 = –…

8 = —..

9 = —-.

0 = —–

So if the listener hears a series of 5 dots and dashes, they immediately know it’s a number. To decode it, they count the number of dashes. If the dashes came before the dots, the number is 5 + the number of dashes. Otherwise, the number is 5 - the number of dashes. 

Morse Code is neat.

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May 22 2017

23 cent/km
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May 10 2017

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