IT.COM

discuss Science & Technology news & discussion

NameSilo
Watch

CraigD

Top Member
Impact
11,689
Post and discuss interesting articles & videos about science and technology.

You don't need to be an expert - just interested in the wonders of modern science, technology, and the history of these fields.

Please keep it rational, and post articles from reputable sources.
Try not to editorialise headlines and keep the copy to just a paragraph with a link to the original source. When quoting excerpts from articles, I think the best method is to italicise the copy, and include a link to the source.

Have some fun with your comments and discussions... just keep the sources legitimate.

Other threads:
The Break Room has a number of other popular threads, so there is no need to post material here that is better suited to these other threads:

- Covid19-Coronavirus updates and news
- Conspiracy Thread Free For All
- The *religious* discussion thread


Please enjoy!
 
Last edited:
12
•••
The views expressed on this page by users and staff are their own, not those of NamePros.
Very good video of the Earth rotation and revolution movements around the Sun!
But the video could show also the movement of our Solar System, located on the Orion Arm of the Milky Way Galaxy, around the big Black Hole located on the center of our galaxy. That's the galaxy spin movement.
And also, the movement of the Milky Way Galaxy through the Universe, going to collide with Andromeda Galaxy in 4.5 billion years, that will be the Big Party! lol

Star's motion around Milky Way's monster black hole proves Einstein right yet again

https://www.space.com/milky-way-supermassive-black-hole-star-dance-einstein-test.html

"Star's motion around Milky Way's monster black hole proves Einstein right yet again. Einstein's theory of general relativity just passed a dramatic black-hole test with flying colors."

Super Spirals Spin Super Fast

https://hubblesite.org/contents/news-releases/2019/news-2019-54.html

"The Milky Way, an average spiral galaxy, spins at a speed of 130 miles per second (210 km/sec) in our Sun's neighborhood. New research has found that the most massive spiral galaxies spin faster than expected."

Orion Arm

https://en.wikipedia.org/wiki/Orion_Arm

"The Orion Arm is a minor spiral arm of the Milky Way Galaxy that is 3,500 light-years (1,100 parsecs) across and approximately 10,000 light-years (3,100 parsecs) in length,[2] containing the Solar System, including Earth."

Andromeda–Milky Way collision

https://en.wikipedia.org/wiki/Andromeda–Milky_Way_collision

"The Andromeda–Milky Way collision is a galactic collision predicted to occur in about 4.5 billion years between the two largest galaxies in the Local Group—the Milky Way (which contains the Solar System and Earth) and the Andromeda Galaxy.[1][2][3][4][5] The stars involved are sufficiently far apart that it is improbable that any of them will individually collide.[6] Some stars will be ejected from the resulting galaxy, nicknamed Milkomeda or Milkdromeda."

Thanks - some great info there @Sutruk

Well, here you go then ;)

A video I found with some nice animation and music giving a rough idea.


The helical model - our solar system is a vortex

This is a non-conventional view of our solar system that is different from the standard 'flat' diagrams. We travel, never return to the same spot again.



The helical model - our Galaxy is a vortex



The Milky Way
- The Milky Way itself travels through space at appr. 600 km/s

Precession cycle
- One precession cycle takes 25,920 years - Since one revolution takes 226 mln years, this would mean that there are appr. 8692 precessional cycles in one revolution. In this animation there are only 60.

Scale & distance
- the Sun is 109 times bigger than the Earth. If this animation was to scale, the planets would be invisible.
- Our Solar System should be a gazillion times smaller compared to the Milky Way. If this animation was to scale, you could not see the Solar System, the Sun or any of the planets.


Given the speed that we are moving through the galaxy, and the forces involved, I found myself sitting here clutching my chair while watching this last video ;)
 
Last edited:
5
•••
Populations will peak and even out eventually as we eat out food sources. I know the exact article without needing to click and yes another jinx tuned in 30+ years. Now we are living in the fastest growing city on planet faster than Bangladesh percentage wise.
https://www.abc.net.au/tv/populationpuzzle/

Australia's population growth projections have been drastically affected by the Covid-19 impact. With immigration effectively dropping to zero for most of this year, and historic drops in fertility, some estimates predict it will take 8-10 years to recover to the long run average.


1.4 million less than projected: how coronavirus could hit Australia’s population in the next 20 years

...as the pandemic rolls on, attention is also now turning to the impact of COVID-19 on population size, structure and distribution.
Our new modelling shows that under a worst-case scenario, Australia will be 1.4 million people – or 4% – smaller in 2040, than if COVID-19 had not happened.

https://theconversation.com/1-4-mil...ralias-population-in-the-next-20-years-143544
 
Last edited:
4
•••
2
•••
Isaac Asimov was an American writer and professor of biochemistry at Boston University. He was known for his works of science fiction and popular science. [Wikipedia link]

Many of his predictions have now become true.

Isaac Asimov on The David Letterman Show 1980
A very interesting interview!



Isaac Asimov Predicts the Future (1978)
[An audio] lecture by Isaac Asimov about his predictions for the future, covering such topics as population growth, the roles of women, energy, war, and space.




Edited

 
Last edited:
4
•••
The Mandelbrot Set

This video has been edited together from several documentaries to describe the Mandelbrot set in a simple, introduction/beginner fashion! What is the Mandelbrot set? An incredible mathematical formula explaining fractals and geometry! Several mathematicians and scientists explain this phenomenon in clear detail.




What's so special about the Mandelbrot Set?


Featuring Ben Sparks discussing the Mandelbrot Set (and Julia Sets).



More information:


https://en.wikipedia.org/wiki/Mandelbrot_set

https://en.wikipedia.org/wiki/Benoit_Mandelbrot (The mathematician)
 
Last edited:
4
•••
Nuclear Explosion Power Comparison

We take a look at the size and power of explosions created from a hand grenade to the Tsar Bomba and beyond. Its not just nukes but supervolcano eruptions & meteor impacts as well. It is indeed a terrifying true scale of nuclear weapons.


 
1
•••
What If You Detonated a Nuclear Bomb In The Marianas Trench?

Did you ever wonder what happened if you detonated a nuclear bomb in the Marianas Trench? No? We neither! Let us find out together!


 
3
•••
Probability Comparison: Rarest Things in the Universe

We look at the rarest and most unlikely things and events in the Universe, from the odds of finding a Four Leaf Clover or a Multi-Colour lobster, to the odds of everyone on Earth winning the Powerball and every birth in 2021 is of the same gender! This animated visualization includes a level scale to show the difference in probability with way more detail than previous Comparisons!


 
1
•••
Why Are 96,000,000 Black Balls on This Reservoir?

 
1
•••
4
•••
Last edited:
4
•••
Pristine Extraterrestrial Organic Compounds Discovered in “Fireball” Meteorite

This meteorite is special because it fell onto a frozen lake and was recovered quickly. It was very pristine. We could see the minerals weren’t much altered and later found that it contained a rich inventory of extraterrestrial organic compounds,” says Philipp Heck, a curator at the Field Museum, associate professor at the University of Chicago, and lead author of the new paper. “These kinds of organic compounds were likely delivered to the early Earth by meteorites and might have contributed to the ingredients of life.”
 
2
•••
Here you can see a video from nasa.gov showing the future collision of the Milky Way with Andromeda:

Crash of the Titans: Milky Way & Andromeda Collision

https://svs.gsfc.nasa.gov/30955

"The three largest galaxies in our Local Group of Galaxies are our Milky Way along with the Andromeda (also known as Messier 31) and Triangulum (also known as Messier 33) galaxies. This scientific visualization of a computer simulation depicts their joint evolution over the next several billion years and features the inevitable massive collision between the Milky Way and Andromeda.

Hubble Space Telescope observations indicate that the two galaxies, pulled together by their mutual gravity, will crash together in a head-on collision about 4 billion years from now. The thin disk shapes of these spiral galaxies are strongly distorted and irrevocably transformed by the encounter. Around 6 billion years from now, the two galaxies will merge to form a single elliptical galaxy. The Triangulum galaxy continues to orbit the merged pair through the end of this computer simulation, though other computer models show it becoming part of the collision.
The visualization covers 8.2 billion years into the future at 105 million years per second."


Thanks @Sutruk

Here is another in-depth video from PBS Space Time:

The Andromeda-Milky Way Collision

The Andromeda galaxy is heading straight toward our own Milky Way. The two galaxies will inevitably collide. Will that be the very last night sky our solar system witnesses?



Andromeda is racing towards our galaxy - The Milky Way - at 110 km/s, so it will be quite a collision.
 
2
•••
Pristine Extraterrestrial Organic Compounds Discovered in “Fireball” Meteorite

This meteorite is special because it fell onto a frozen lake and was recovered quickly. It was very pristine. We could see the minerals weren’t much altered and later found that it contained a rich inventory of extraterrestrial organic compounds,” says Philipp Heck, a curator at the Field Museum, associate professor at the University of Chicago, and lead author of the new paper. “These kinds of organic compounds were likely delivered to the early Earth by meteorites and might have contributed to the ingredients of life.”

Thanks @koolishman

Although organic compounds make up only a small percentage of the Earth's crust, they are of central importance because all known life is based on organic compounds.
https://en.wikipedia.org/wiki/Organic_compound
 
Last edited:
2
•••
OSIRIS-REx Stow Success!

NASA... provides an update on the status of the agency’s Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer (OSIRIS-REx) spacecraft and the mission’s work to safely stow the sample it collected from asteroid Bennu.

OSIRIS-REx team members discuss how the stowage process has gone so far, what else they have learned about the sample, and what the next steps are for the mission to return the sample to Earth.


https://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=13754
 
2
•••
1
•••
The Mandelbrot Set

This video has been edited together from several documentaries to describe the Mandelbrot set in a simple, introduction/beginner fashion! What is the Mandelbrot set? An incredible mathematical formula explaining fractals and geometry! Several mathematicians and scientists explain this phenomenon in clear detail.




What's so special about the Mandelbrot Set?


Featuring Ben Sparks discussing the Mandelbrot Set (and Julia Sets).



More information:


https://en.wikipedia.org/wiki/Mandelbrot_set

https://en.wikipedia.org/wiki/Benoit_Mandelbrot (The mathematician)

Screw this is mental @CraigD Guess what? We are watching all the exact same stuff AGAIN same time. Doesn't matter what subject, documentary, movie music video or news article.. Are we still sharing same ip lol.
 
Last edited:
2
•••
Screw this is mental @CraigD Guess what? We are watching all the exact same stuff AGAIN same time. Doesn't matter what subject, documentary, movie music video or news article.. Are we still sharing same ip lol.

LOL, I think we are getting the same Youtube suggestions.
:)

The way the algorithm works, you may find that if you watch all of the above, you may get the exact same suggestions.
 
Last edited:
2
•••
LOL, I think we are getting the same Youtube suggestions.
:)
We have known each other 30 years sold domains to each other lived together with worked with and for each other in various fields. I think we are just tuned in have our periods in sync.
 
2
•••
Last part is funny as @CraigD is most perfect gentlemen I was raised same but also a mouth and a gee up for comedy sake.
 
Last edited:
2
•••
STOL Competition - World Record Shortest Landing 9 Feet 5 Inches

 
Last edited:
2
•••
STOL Competition - World Record Shortest Landing 9 Feet 5 Inches


Or just fall directly to the ground
Up up in the sky my beautiful my beautiful inside joke that won't explain lol.
 
0
•••
Insane Engineering Of The Saturn F-1 Engine


------

The Rocketdyne F-1 was developed in the late 1950's and used in the Saturn V rocket, and is still the most powerful engine in the world.

S-IC_engines_and_Von_Braun.jpg


--------

How To Start The Massive F-1 Rocket Engine - Explaining "Ignition Sequence Start"

Seconds before the launch of a Saturn V we hear the launch commentator calling out 'Ignition Sequence Start'. The ignition sequence is a complicated series of steps which spin the engine up to speed and light the combustion chamber so that the rocket lifts off rather than explodes.

 
Last edited:
2
•••
How Kodak Exposed The Atomic Bomb

 
1
•••
Last edited:
2
•••
Back