Title: Re: [video] post cool science stuff
Post by: redheron on January 22, 2017, 12:41:01 pm
(https://68.media.tumblr.com/0b6d904f24b073c5c698ee055d0ab8fa/tumblr_ok6xtxjA9D1tic84no1_540.jpg) (https://68.media.tumblr.com/9ca16044d45c649334f6aae1fea2f0c3/tumblr_ok6xtxjA9D1tic84no2_540.jpg) (https://68.media.tumblr.com/fa3482e51f15916a6fd9c9e5e8aff734/tumblr_ok6xtxjA9D1tic84no3_540.jpg) Whether caecilians lay eggs or give birth to babies, they are some of the most devoted mothers in the animal kingdom. Once thought to simply abandon their eggs (as that is the norm for most amphibians), it has now been proved that female caecilians will stay with and guard their nests, even remaining with the babies for up to six weeks after they have hatched. But the really amazing thing is how mother caecilians feed their young.
The unborn babies of live-bearing caecilians develop special teeth while still in the womb, and nourish themselves by using those teeth to scrape off and consume the cells lining their mother?s oviducts. Several species of egg-laying caecilians, on the other hand, demonstrate a unique behaviour known as ?maternal dermatotrphy?. The mother?s skin cells grow larger and contain more fat, and her brood uses specialised teeth (some blunt scrapers and others sharp hooks) to peel off this skin and devour it (https://www.youtube.com/watch?v=6K6szXrBHwM). The female caecilian will regrow this skin every three days so that her young can continue to feed. Not to worry, though; this outer layer of skin is dead, so having it chewed off doesn?t hurt the mother.
Title: Re: [video] post cool science stuff
Post by: rachel on February 02, 2017, 04:55:30 am
This fish spits at insects and eats them when they fall into the water
https://www.youtube.com/watch?v=gN81dtxilhE
Not only that, it's able to accurately aim the water it spits to hit targets over a 16 inches out of the water. And it can recognize different human faces.
Title: Re: [video] post cool science stuff
Post by: rachel on March 12, 2017, 06:50:11 pm
Title: Re: [video] post cool science stuff
Post by: redheron on March 17, 2017, 06:06:36 pm
The US Just Declassified Dozens of Nuclear Weapons Explosions and Put Them on YouTube (http://www.sciencealert.com/the-us-government-just-declassified-dozens-of-nuclear-weapons-explosion-movies-and-put-them-on-youtube)
Title: Re: [video] post cool science stuff
Post by: rachel on April 20, 2017, 12:09:15 am
WATER BUBBLE SHOCKWAVVES omgosh so coooool
https://www.youtube.com/watch?v=fY8pucNaaH0
edit: duuude you gotta check out the massive shockwave explosion at 7:20
Title: Re: [video] post cool science stuff
Post by: redheron on April 21, 2017, 12:40:54 pm
Extreme up-close video of tornado near Wray, CO (https://www.youtube.com/watch?v=bjb7QtMEBUg)
Title: Re: [video] post cool science stuff
Post by: rachel on April 21, 2017, 07:04:07 pm
Extreme up-close video of tornado near Wray, CO (https://www.youtube.com/watch?v=bjb7QtMEBUg)
2 minutes in they're like "LET'S GET A LITTLE BIT CLOSER WHAT DO YOU THINK?"
wtfffffffffffffff
these people are nuts LOL
Title: Re: [video] post cool science stuff
Post by: Clippy on April 25, 2017, 02:26:25 am
One of the coolest videos on the net talkin about the eventual uprising of the robots!
https://www.youtube.com/watch?v=7Pq-S557XQU
Title: Re: [video] post cool science stuff
Post by: redheron on May 12, 2017, 01:32:23 pm
A NEW DINOSAUR FOSSIL WITH A FAAAAAAAAAAAACE (https://www.washingtonpost.com/news/morning-mix/wp/2017/05/12/rare-as-winning-the-lottery-new-dinosaur-fossil-so-well-preserved-it-looks-like-a-statue/?utm_term=.8bcba4a01e80) (https://img.washingtonpost.com/news/morning-mix/wp-content/uploads/sites/21/2017/05/NGM_0617_MM8543_Nodosaur_01-1024x683.jpg)
Title: Re: [video] post cool science stuff
Post by: redheron on July 12, 2017, 06:27:03 am
Reverberation time of a balloon pop: reverb room vs. anechoic chamber (https://www.youtube.com/watch?v=zq07ZFMvo-c)
Title: Re: [video] post cool science stuff
Post by: redheron on July 12, 2017, 06:11:23 pm
Title: Re: [video] post cool science stuff
Post by: rachel on September 04, 2017, 09:27:29 pm
Quote
In a piece of scientific detective work spanning centuries, researchers have finally discovered the source of a classical nova witnessed by Korean royal astronomers on 11 March 1437. The nova, a giant thermonuclear explosion, lingered as a bright spot between two stars in the constellation Wei?a part of Scorpius?for 14 days before vanishing. Using x-ray, ultraviolet, and photographic images from as far back as 1923, the team traced its source to what is now a dim star in Scorpius, they report today in Nature. The images showed the expanding shell of hydrogen ejected by the explosion. Unlike a supernova, in which stars blow themselves apart with terrifying finality, classical novae are smaller events in which gas from one star in a closely spaced binary system is captured by the other star, accumulating until it erupts in a giant thermonuclear explosion. Classical novae are believed to occur on multithousand-year cycles,
Title: Re: [video] post cool science stuff
Post by: rachel on November 21, 2017, 01:16:54 am
Quote from: "Practical problems in exploration: Seed crops", 1975
"The potential value of a collection cannot be assessed in the field. Perhaps this statement could best be illustrated by PI 178383, a wheat I collected in a remote part of Eastern Turkey in 1948. It is a miserable looking wheat, tall, thin-stemmed, lodges badly, is susceptible to leaf rust, lacks winter hardiness yet is difficult to vernalize, and has poor baking qualities. Understandably, no one paid any attention to it for some 15 years. Suddenly, stripe rust became serious in the north-western states and PI 178383 turned out to be resistant to four races of stripe rust, 35 races of common bunt, ten races of dwarf bunt and to have good tolerance to flag smut and snow mould. The improved cultivars based on PI 178383 are reducing losses by a matter of some millions of dollars per year."
Title: Re: [video] post cool science stuff
Post by: rachel on November 27, 2017, 08:59:41 pm
yes, its calleda rotary engine https://en.wikipedia.org/wiki/Rotary_engine (https://en.wikipedia.org/wiki/Rotary_engine)
Title: Re: [video] post cool science stuff
Post by: rachel on March 09, 2019, 10:22:30 pm
hey it's the future now and we can post videos here
Title: Re: [video] post cool science stuff
Post by: redheron on March 13, 2019, 01:32:35 am
Mechanical engineers have developed an “acoustic metamaterial” that can cancel 94 percent of sound (https://www.bu.edu/research/articles/researchers-develop-acoustic-metamaterial-noise-cancellation-device/)
Title: Re: [video] post cool science stuff
Post by: redheron on March 19, 2019, 03:27:59 pm
so I guess pluto is a planet again??? (https://news.nationalgeographic.com/news/2014/09/140926-pluto-planet-definition-science-debate/)
another source (https://www.washingtonpost.com/news/speaking-of-science/wp/2018/05/07/yes-pluto-is-a-planet/?utm_term=.92eca320478c)
One of the coolest videos on the net talkin about the eventual uprising of the robots!
https://www.youtube.com/watch?v=7Pq-S557XQU
The way to counter this, is to teach robots to be lazy and corrupt. Just think about a robot who just sits around all day and watches reality television (featuring robots who sleep with each other's significant others, backstab, and generally be petty).
Now I know why the angels taught us how to make weapons and wear make up.
Title: Re: [video] post cool science stuff
Post by: Diabolizer on August 08, 2019, 11:50:10 pm
Title: Re: [video] post cool science stuff
Post by: rachel on September 11, 2019, 09:41:52 pm
Title: Re: [video] post cool science stuff
Post by: rachel on April 19, 2020, 09:47:36 pm
kate got me addicted to practical engineering
Title: Re: [video] post cool science stuff
Post by: rachel on May 03, 2020, 11:33:36 pm
Title: Re: [video] post cool science stuff
Post by: rachel on June 23, 2020, 10:29:35 pm
Title: Re: [video] post cool science stuff
Post by: rachel on July 01, 2020, 10:58:53 pm
what do salts of all the alkali metals taste like?
Title: Re: [video] post cool science stuff
Post by: rachel on July 29, 2020, 09:48:54 pm
I am laughing out loud at all these crazy tangents he keeps going on
but then he comes right back to the topic
it's great
Title: Re: [video] post cool science stuff
Post by: rachel on September 16, 2020, 04:40:48 pm
Title: Re: [video] post cool science stuff
Post by: rachel on September 22, 2020, 05:50:33 pm
Title: Re: [video] post cool science stuff
Post by: rachel on October 07, 2020, 09:05:54 pm
Title: Re: [video] post cool science stuff
Post by: here cums the fuck truck on October 11, 2020, 09:03:46 am
one day i hope to compost used motor oil, i think its just a matter of making it as easy as possible for opportunistic bacteria to get to it. i think getting some landfill runoff could possibly be a good bacterial seed, except its probably also loaded with lead and mercury and all sorts of toxic metals from circuit boards.
Title: Re: [video] post cool science stuff
Post by: rachel on November 24, 2020, 07:28:38 pm
Title: Re: [video] post cool science stuff
Post by: Anomaly on December 03, 2020, 02:25:47 pm
Does a cool science thing collapsing count?
Title: Re: [video] post cool science stuff
Post by: rothen on December 04, 2020, 11:30:50 am
Title: Re: [video] post cool science stuff
Post by: rachel on December 05, 2020, 08:15:55 am
Scott Manley did a pretty good analysis of the footage, including another vantage point from a drone that was flying next to one of the towers as it failed
Title: Re: [video] post cool science stuff
Post by: rachel on December 05, 2020, 10:48:44 am
Is this science? Maybe it's more like engineering, I dunno
Title: Re: [video] post cool science stuff
Post by: Anomaly on December 05, 2020, 03:17:14 pm
Scott Manley did a pretty good analysis of the footage, including another vantage point from a drone that was flying next to one of the towers as it failed
The drone footage IS included in the video I posted at the end, so it's not new. Neat video, terrible editing at times though.
Title: Re: [video] post cool science stuff
Post by: rachel on December 05, 2020, 04:13:35 pm
Scott Manley did a pretty good analysis of the footage, including another vantage point from a drone that was flying next to one of the towers as it failed
The drone footage IS included in the video I posted at the end, so it's not new. Neat video, terrible editing at times though.
oh derp, you're right that is the source video of both
Title: Re: [video] post cool science stuff
Post by: Mozai on January 08, 2021, 03:43:37 pm
Title: Re: [video] post cool science stuff
Post by: rachel on January 08, 2021, 04:27:46 pm
How was that done? Silver vapour in a closed container, and they slowly lower the temperature? or, wait, that would turn into silver condensation. Also a container that hot would probably radiate in the visible spectrum, glowing.
Title: Re: [video] post cool science stuff
Post by: rachel on February 02, 2021, 10:38:40 am
How was that done? Silver vapour in a closed container, and they slowly lower the temperature? or, wait, that would turn into silver condensation. Also a container that hot would probably radiate in the visible spectrum, glowing.
The caption from wikipedia says "Silver crystals forming on a copper surface in a silver nitrate solution"
So they are forming in a liquid saturated with silver, similar to how crystals form in caves. To be fair, ice crystals work the same way but we often forget that air is a solution filled with water
Title: Re: [video] post cool science stuff
Post by: rachel on March 12, 2021, 03:32:43 pm
Title: Re: [video] post cool science stuff
Post by: rachel on April 20, 2021, 10:06:36 am
Title: Re: [video] post cool science stuff
Post by: rachel on October 14, 2021, 07:38:43 pm
Title: Re: [video] post cool science stuff
Post by: rachel on January 25, 2022, 04:34:21 pm
Title: Re: [video] post cool science stuff
Post by: rachel on March 30, 2022, 01:38:24 am
Title: Re: [video] post cool science stuff
Post by: rachel on April 16, 2022, 08:46:57 pm
it's time for another zefrank video
Title: Re: [video] post cool science stuff
Post by: rachel on May 28, 2022, 01:43:22 pm
Title: Re: [video] post cool science stuff
Post by: rachel on June 15, 2022, 11:06:56 pm
Title: Re: [video] post cool science stuff
Post by: rachel on June 29, 2022, 10:37:35 pm
https://en.wikipedia.org/wiki/Palaeocastor
Title: slime molds are trippy as hell
Post by: rachel on August 12, 2022, 05:04:44 pm
Quote
The most familiar strategy of cooperative behavior among such microorganism is attractive chemotaxis. Colonies of the slime mold Dictyostelium discoideum bacteria, when deprived of heat or moisture, start up their cross-talk, this communication allows them to aggregate into multicellular bodies that are more fit survive hardship. Certain cells, called pioneer cells, release pulse of the compound cyclic adenosine monophosphate (cAMP), and nearby cells then follow this chemical trail to its source. Once a cell has emitted a burst of the chemoattractant, it falls silence for several minute, as if recuperating from the exertion. This refractory period means that, when a slime mold colony starts to undergo chemotaxis, it behaves as an excitable medium, then there is no surprise that the slime mold shows target and spiral patterns as BZ retraction.
Title: Re: [video] post cool science stuff
Post by: rachel on January 08, 2023, 09:57:50 pm
Frogs living in the Chernobyl exclusion zone have evolved darker skin over the past 30 years since the reactor meltdown. It is hypothesized that these frogs have evolved darker skin because melanin absorbs radiation.
Title: Re: [video] post cool science stuff
Post by: nepnep on March 12, 2023, 05:09:39 am
Does this count as AI? It's artificial. And it's intelligent.
This is like watching a football game play out except it actually holds my interest.
Title: Re: [video] post cool science stuff
Post by: rachel on March 24, 2023, 10:27:41 pm
Title: Re: [video] post cool science stuff
Post by: rachel on May 22, 2023, 12:37:56 pm
zefrank animal awards 2023
Title: Re: [video] post cool science stuff
Post by: rachel on June 20, 2023, 11:55:13 pm
Title: Re: [video] post cool science stuff
Post by: rachel on November 02, 2023, 11:29:14 pm
Sometimes cool science stuff is wrong. It turns out even scientific journals aren't immune to clickbait
Title: Re: [video] post cool science stuff
Post by: rachel on November 06, 2023, 10:41:31 pm
wtf lasers can levitate things!??
Title: Re: [video] post cool science stuff
Post by: rachel on December 26, 2023, 11:55:00 pm
squeezing air to burn cotton
Title: Re: [video] post cool science stuff
Post by: rachel on January 12, 2024, 12:50:54 am
shining visible light and UV at a charged plate has different effects because the UV photons have more energy!
Title: Re: [video] post cool science stuff
Post by: rachel on January 21, 2024, 01:00:55 pm
Title: Re: [video] post cool science stuff
Post by: rachel on January 25, 2024, 08:46:05 pm
using electricity and magnets to create a crazy spinning arc