Amusing Science

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sparks
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Re: Amusing Science

Post by sparks » Fri Sep 14, 2018 1:19 am

"Give me the title of one of the books and I'll try to have a look."

I recall encountering it in a tech manual for a Studer A 727 CD player. Professional model we used in radio stations back in the early '90s as a comprehensive introduction as to how the damned things worked.
You can lead them to knowledge, but you can't make them think.

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Witness
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Re: Amusing Science

Post by Witness » Fri Sep 14, 2018 1:31 am

↑ Thought some textbook. This manual: https://www.vintageshifi.com/repertoire ... Manual.pdf?

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Re: Amusing Science

Post by sparks » Fri Sep 14, 2018 1:52 am

Yep. Go to page 11. The way the wrote this, the MSB is on the right.
You can lead them to knowledge, but you can't make them think.

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Re: Amusing Science

Post by Witness » Sat Sep 15, 2018 3:10 am

sparks wrote:
Fri Sep 14, 2018 1:52 am
Yep. Go to page 11. The way the wrote this, the MSB is on the right.
I really don't know, but I have a hypothesis (apart from constraints perhaps arising from the fact that the data is transmitted).

Image

Image

When the AUX nibble is used for carrying extended audio data, it presumably contains the least significative bits (or the CD would be unplayable on machines using only the AUDIO SAMPLE part). So placing the LSB on the left, near AUX, allows to grab bits 4 – 27 in one swoop (if AUX too goes from LSB to MSB from left to right, which is the case).

Whaddya think, pure fiction? :P

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Re: Amusing Science

Post by sparks » Sat Sep 15, 2018 4:00 am

Clear as mud to me my friend!
You can lead them to knowledge, but you can't make them think.

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Re: Amusing Science

Post by Witness » Tue Sep 18, 2018 1:51 am

Electric eel:


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Anaxagoras
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Re: Amusing Science

Post by Anaxagoras » Tue Sep 18, 2018 6:25 am

Image

Betcha guys didn't know about this little trick of science. 8)
A fool thinks himself to be wise, but a wise man knows himself to be a fool.
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Re: Amusing Science

Post by Doctor X » Tue Sep 18, 2018 7:46 am

Not to that degree.

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Re: Amusing Science

Post by Witness » Wed Sep 19, 2018 2:51 am

Mushroom trivia:
Fascinating facts about fungi
  • "Fungi are in a kingdom of their own but are closer to animals than plants
  • They have chemicals in their cell walls shared with lobsters and crabs
  • A fungus has been discovered capable of breaking down plastics in weeks rather than years
  • There is evidence to suggest that yeasts - a type of fungus - were being used to produce the alcoholic drink mead as long ago as 9,000 years ago
  • At least 350 species are consumed as foods including truffles, which can sell for thousands of dollars apiece, quorn, and those in marmite and cheese
  • Plastic car parts, synthetic rubber and lego are made using itaconic acid derived from a fungus
  • 216 species of fungi are thought to be hallucinogenic
  • Fungi are being used to turn crop waste into bioethanol
  • Products made from fungi can be used as replacements for polystyrene foam, leather and building materials
  • DNA studies show that there are thousands of different fungi in a single sample of soil, many of which are unknown and hidden - so-called "dark taxa"
https://www.bbc.co.uk/news/science-environment-45486844

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Re: Amusing Science

Post by Witness » Thu Sep 27, 2018 1:30 am


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Re: Amusing Science

Post by Anaxagoras » Fri Oct 05, 2018 10:58 am

A fool thinks himself to be wise, but a wise man knows himself to be a fool.
William Shakespeare

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Re: Amusing Science

Post by Doctor X » Fri Oct 05, 2018 5:35 pm

Rots of Rock.

--J.D.
Mob of the Mean: Free beanie, cattle-prod and Charley Fan Club!
"Doctor X is just treating you the way he treats everyone--as subhuman crap too dumb to breathe in after you breathe out."--Don
DocX: FTW.--sparks
"Doctor X wins again."--Pyrrho
"Never sorry to make a racist Fucktard cry."--His Humble MagNIfIcence
"It was the criticisms of Doc X, actually, that let me see more clearly how far the hypocrisy had gone."--clarsct
"I'd leave it up to Doctor X who has been a benevolent tyrant so far."--Grammatron
"Indeed you are a river to your people.
Shit. That's going to end up in your sig."--Pyrrho
"Try a twelve step program and accept Doctor X as your High Power."--asthmatic camel
"just like Doc X said." --gnome

WS CHAMPIONS X4!!!! NBA CHAMPIONS!! Stanley Cup! SB CHAMPIONS X5!!!!!

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Re: Amusing Science

Post by Witness » Sat Oct 06, 2018 10:46 pm

Image
Cosmic ray transmission muography of a full/empty water tower

Muons are negatively-charged particles similar to electrons but about 207 times heavier. Random cosmic/cosmic-ray-plus-atmosphere-generated muons naturally bombard the Earth all the time and they can penetrate hundreds, up to thousands of meters of solid rock.

Considering the penetrative power of muons, this is a rather "easy" application: a concrete water tower with and without water, after 4-day exposures using a small (0.25 m2) sensor downstream of the tower. Other ways of imaging use multiple sensors on both front/back of the object, or all on one side, or can measure deviation of muons instead of absorption.
Same technique used on the Pyramids. :wink:

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Re: Amusing Science

Post by Witness » Wed Nov 21, 2018 1:20 am


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Re: Amusing Science

Post by Abdul Alhazred » Wed Nov 21, 2018 2:07 am

I had one of those.

It was red plastic and my father bought it on a family outing to the Hayden Planetarium. 8)
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Re: Amusing Science

Post by Witness » Thu Nov 22, 2018 11:53 pm


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Re: Amusing Science

Post by Abdul Alhazred » Thu Nov 22, 2018 11:58 pm

That it flies at all is impressive.
Image "If I turn in a sicko, will I get a reward?"

"Yes! A BIG REWARD!" ====> Click here to turn in a sicko
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-- our mission statement plappendale

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Re: Amusing Science

Post by Witness » Mon Dec 03, 2018 12:16 am

Linguistics: learn some sign language.

Image

:mrgreen:

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Re: Amusing Science

Post by Witness » Tue Dec 04, 2018 1:51 am

Toothbrush holder in bathroom turns out to be a jar from Indus Valley civilisation

Antiquities expert James Brenchley said the object was an Indus Valley civilisation pottery jar dating back to 1900 BC.

Image

Based in Derby in the west Midlands, Karl Martin, who bought the jar at a car-boot sale with another pot for £4, was told of its antiquity by a colleague at the local auctioneers, Hansons. The jar with a painting of an antelope was put for auction this week, selling for £80.

A keen collector, Martin said: “I liked it straight away. I used it in the bathroom to store my toothpaste and toothbrush – it even ended up getting a few toothpaste marks on it. I suspected it might be very old but forgot all about it”.

“Then, one day at work, I was helping Hansons’ antiquities expert James Brenchley unload a van and noticed some pottery which was similar to my toothbrush pot. The painting style looked the same and it had similar crudely-painted animal figures”.

“I rescued the pot from my bathroom and asked him to examine it for me. He confirmed it was a genuine antiquity from Afghanistan and dated back to 1900 BC. That means it’s around 4,000 years old – made 2,000 years before Christ was born. It’s amazing, really. How it ended up at a South Derbyshire car-boot sale, I’ll never know”.

Brenchley said: “This is an Indus Valley-Harappan civilisation pottery jar dating back to 1900 BC. This was a Bronze Age civilisation mainly in the north western regions of South Asia. The civilisation was primarily located in modern-day India and Pakistan as well as Afghanistan.”
https://www.hindustantimes.com/world-ne ... ECcJP.html

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Re: Amusing Science

Post by Anaxagoras » Tue Dec 04, 2018 10:44 am

Hope I did the tags right.
A fool thinks himself to be wise, but a wise man knows himself to be a fool.
William Shakespeare