Amusing Science

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Doctor X
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Re: Amusing Science

Post by Doctor X »

Is there proof it will not give The Children the Autism?!

Clearly, we need to delay this for further studies.

Why have we not researched all natural homeopathic remedies?

I will pray for you.

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Witness
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Re: Amusing Science

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Anaxagoras wrote:
Southern Gardens Citrus has engineered a version of the Citrus tristeza virus to attack the bacterium
Let's hope they know what they are doing:
Wikipedia wrote:Citrus tristeza virus (CTV) is a viral species of the Closterovirus genus that causes the most economically damaging disease to its namesake plant genus, Citrus. The disease has led to the death of millions of Citrus trees all over the world and has rendered other millions useless for production.
[…]
Importance

CTV is the most economically important and damaging virus of citrus trees. It can be spread quickly and do damage not only by killing trees with sour orange rootstock, but also by stem pitting normal citrus trees. It has killed more than 80 million trees worldwide, mainly in South Africa since 1910, Argentina (10 million) and Brazil (6 million) since 1970, and the U.S. (3 million) since 1950. With the spreading of T. citricida the severity and impact has increased dramatically in Central America and the U.S. In Spain there has been a progressive decline in production from over 40 million sweet orange and mandarin trees.
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Anaxagoras
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Re: Amusing Science

Post by Anaxagoras »

Cells with lab-made DNA produce a new kind of protein, a ‘holy grail’ for synthetic biology
Scientists in San Diego have achieved a major goal in the effort to craft artificial organisms: A microbe whose genetic material included some lab-made instructions was able to live, reproduce and synthesize proteins that included molecules never before used by life.

The development, described Wednesday in a paper in the journal Nature, is a step toward a world in which scientists can engineer organisms capable of producing highly specialized proteins that may be used to improve medicines, construct new materials and perhaps even change the functions of cells.
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sparks
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Re: Amusing Science

Post by sparks »

[youtube][/youtube]
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

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Science Daily wrote:Twisted sex allows mirror-image snails to mate face-to-face, research finds

Dr Davison said: "We were surprised to find that different-coiled individual Euhadra snails can sometimes mate, against expectations, and that there is evidence for this in their DNA. It was previously supposed that face-to-face mating was impossible between mirror image snails. We showed that while mating -- and the movement of genes -- between the two types is certainly a rare event, it occurs sufficiently often that the two types should properly be considered a single species. It turns out that the mating problem is mainly behavioural, requiring a twisting of the genitals, rather than a physical incompatibility."
https://www.sciencedaily.com/releases/2 ... 123518.htm

Another triumph of Love. :mrgreen:
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Re: Amusing Science

Post by Witness »

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Re: Amusing Science

Post by Witness »

Abdul Alhazred wrote:
... In maturity it smells like putrid flesh. ...
What did you expect from this horror? :roll:

Plants relying on bees & butterflies have perfumed flowers, and some mushrooms try to attract beetles, flies & vertebrates of the carrion-loving persuasion. (Sad to say, most truffles stink.) But there are exceptions like Amorphophallus Wilhelma (something like Wilhelma's limp dick):

Image
Wikipedia wrote:Carrion flowers, also known as corpse flowers or stinking flowers, are flowers that emit an odor that smells like rotting flesh. Carrion flowers attract mostly scavenging flies and beetles as pollinators. Some species may trap the insects temporarily to ensure the gathering and transfer of pollen.
And for Bruce:
The sources of the flowers' unique scent are not fully identified, partly due to the extremely low concentration of the compounds (5 to 10 parts per billion). Dimethyl sulfides, including disulfide and trisulfide have been detected in Amorphophallus.
:mrgreen:
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Re: Amusing Science

Post by sparks »

"Feed me Seymour!!"
You can lead them to knowledge, but you can't make them think.
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Re: Amusing Science

Post by Witness »

Bubble sort illustrated (yes, it's slow):

[youtube][/youtube]

Other types of sort if you follow to YT. :mrgreen:
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Re: Amusing Science

Post by Witness »

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Re: Amusing Science

Post by Witness »

[youtube][/youtube]
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Re: Amusing Science

Post by Witness »

Spoiler:
Fluid flow around a starfish larva. Research article: https://www.nature.com/articles/nphys3981
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Re: Amusing Science

Post by Witness »

Impeaching Trump, hm? I found this amusing, so I put it here:

[youtube][/youtube]

Every Bible wielder is ipso facto competent to criticize what is "just a theory" (and contradicts his beliefs). :roll:
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sparks
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Re: Amusing Science

Post by sparks »

Too painful, couldn't watch all of that tripe. Pence: The new Dan Quayle. Dumb as a sack of wet hammers.

It is NOT just a theory Mr. VP. 10,000 years of plant and animal domestication proves it. You dumb sumbitch.

This is the guy who can't have dinner with any woman other than wifey 'cause he might get himself a boner... Apologies to wet hammers everywhere, I do a disservice to them by comparing them with Pence.
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Re: Amusing Science

Post by gnome »

Witness wrote:
Spoiler:
Fluid flow around a starfish larva. Research article: https://www.nature.com/articles/nphys3981
Side note: I have seen many attempts to animate Van Gogh's "Starry Night" painting. They have all been unsatisfying because they don't look like this, which is what my head sees.
"If fighting is sure to result in victory, then you must fight! Sun Tzu said that, and I'd say he knows a little bit more about fighting than you do, pal, because he invented it, and then he perfected it so that no living man could best him in the ring of honor. Then, he used his fight money to buy two of every animal on earth, and then he herded them onto a boat, and then he beat the crap out of every single one. And from that day forward any time a bunch of animals are together in one place it's called a zoo! (Beat) Unless it's a farm!"
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gnome
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Re: Amusing Science

Post by gnome »

Witness wrote:
Is that gyroscoping off the kinetic energy of trying to move it? I wouldn't have thought it would work so well.
"If fighting is sure to result in victory, then you must fight! Sun Tzu said that, and I'd say he knows a little bit more about fighting than you do, pal, because he invented it, and then he perfected it so that no living man could best him in the ring of honor. Then, he used his fight money to buy two of every animal on earth, and then he herded them onto a boat, and then he beat the crap out of every single one. And from that day forward any time a bunch of animals are together in one place it's called a zoo! (Beat) Unless it's a farm!"
--Soldier, TF2
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Anaxagoras
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Re: Amusing Science

Post by Anaxagoras »

Again the lesson is never hire a woman. Just not worth the risk.


Of course I'm joking! I love women. Some of my best friends are women!


何?
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ceptimus
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Re: Amusing Science

Post by ceptimus »

It's not gyroscopic so much as reaction wheeling - it uses solid state gyros to detect movement, but then opposes any toppling by the torque reaction of spinning up a flywheel rotating in the same direction as the incipient topple. It's the same principle that tightrope walkers use - though they have a long heavy pole instead of the reaction flywheel.
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Rob Lister
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Re: Amusing Science

Post by Rob Lister »

"incipient topple"

I going to use that in the future. Maybe even in context.

I don't care who your are, that's cool.
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Witness
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Re: Amusing Science

Post by Witness »

A more detailed vid about the "cubli":

[youtube][/youtube]

Another, DIY, thingy:

[youtube][/youtube]
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Bruce
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Re: Amusing Science

Post by Bruce »

Cubli. Perfect present to put under the tree for the little ones.

Mom! Dad! One of the presents got up and walked away!

:twisted:
Such potential!
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Re: Amusing Science

Post by Witness »

Image
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gnome
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Re: Amusing Science

Post by gnome »

I call bullshit. How is the green light getting through the solid yellow pencil?
"If fighting is sure to result in victory, then you must fight! Sun Tzu said that, and I'd say he knows a little bit more about fighting than you do, pal, because he invented it, and then he perfected it so that no living man could best him in the ring of honor. Then, he used his fight money to buy two of every animal on earth, and then he herded them onto a boat, and then he beat the crap out of every single one. And from that day forward any time a bunch of animals are together in one place it's called a zoo! (Beat) Unless it's a farm!"
--Soldier, TF2
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Witness
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Re: Amusing Science

Post by Witness »

gnome wrote:I call bullshit. How is the green light getting through the solid yellow pencil?
Magic. :mrgreen:
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Re: Amusing Science

Post by Bruce »

gnome wrote:I call bullshit. How is the green light getting through the solid yellow pencil?
But you're ok with the red and blue light getting through? What about the magenta?

Maybe it's just a really reeeeeally polarized filter. :P
Such potential!
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Re: Amusing Science

Post by gnome »

I'm just prejudiced against green.
"If fighting is sure to result in victory, then you must fight! Sun Tzu said that, and I'd say he knows a little bit more about fighting than you do, pal, because he invented it, and then he perfected it so that no living man could best him in the ring of honor. Then, he used his fight money to buy two of every animal on earth, and then he herded them onto a boat, and then he beat the crap out of every single one. And from that day forward any time a bunch of animals are together in one place it's called a zoo! (Beat) Unless it's a farm!"
--Soldier, TF2
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ceptimus
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Re: Amusing Science

Post by ceptimus »

I suppose the filter *could* just be stretching out the images along the whole length of the filter - in which case it would be useless for viewing anything that's not straight and regular along its length. That would explain the 'trick' without needing photoshop-style trickery.

I'm not saying that is how it was done - it's just one possibility.
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Doctor X
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Re: Amusing Science

Post by Doctor X »

Jesus, Buffy.

--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

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Rob Lister
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Re: Amusing Science

Post by Rob Lister »

Clearly gnome is a green racist but I too have problems with the color blue.
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Anaxagoras
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Re: Amusing Science

Post by Anaxagoras »

This one's a bit hard to believe too. Self-repairing glass:

https://japantoday.com/category/tech/Gl ... y-of-Tokyo
A fool thinks himself to be wise, but a wise man knows himself to be a fool.
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Witness
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Re: Amusing Science

Post by Witness »

ceptimus is, as usual, right: the plastic thingy diffuses light, but only in one direction. As the pencils are linear objects, we don't notice the smeared out image.

Now for something classic:
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ceptimus
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Re: Amusing Science

Post by ceptimus »

That one really has been faked. The whole point of that illusion is that white squares in the shadow are as dark as the dark squares outside the shadow. If you physically move a dark square into shadow it becomes darker still.
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Re: Amusing Science

Post by Anaxagoras »

I wonder what it looks like from a different angle or under different lighting conditions.

There are definitely some weird optical illusions.
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 Witness »

ceptimus wrote:That one really has been faked. The whole point of that illusion is that white squares in the shadow are as dark as the dark squares outside the shadow. If you physically move a dark square into shadow it becomes darker still.
Sure, but where exactly is the forgery? :mrgreen:
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Re: Amusing Science

Post by sparks »

Anaxagoras wrote:This one's a bit hard to believe too. Self-repairing glass:

https://japantoday.com/category/tech/Gl ... y-of-Tokyo
Alien pee glass indeed. :)
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Witness
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Re: Amusing Science

Post by Witness »

Cool science job:

[youtube][/youtube]
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sparks
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Re: Amusing Science

Post by sparks »

Sublimed with Salmonelliac?

WTF? :)

Oh. It's alchemy. The first attempt, nay religion if you will, for chemistry. As you were. Before you were so unfortunately sublimated.
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Re: Amusing Science

Post by Witness »

Image
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Anaxagoras
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Re: Amusing Science

Post by Anaxagoras »

Makes sense if you think about it.
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 Anaxagoras »

Abdul Alhazred wrote:Hmm. Is this right?

The center of gravity is falling at the speed expected for the mass of the slinky?
That is correct.

The other thing to note is that the amount of stretch at the beginning is determined by gravity. If you held a slinky like that on the moon, where the gravity is only 1/6th as strong, initially it would be much shorter. On a more massive planet with stronger gravity, it would be stretched out longer.

I don't know if it's a coincidence that the bottom doesn't seem to move at all. Maybe that's just a function of how springy the slinky is, but I'm guessing it's just proportional to the amount of extension. The farther you stretch it, the faster the ends move when you release it. Unless you stretch it so far that you permanently warp the metal. Intuitively it seems right to me though.
A fool thinks himself to be wise, but a wise man knows himself to be a fool.
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