Mach

[Massimo @Rainmaker1973]

This is the Burj Khalifa skyscraper in Dubai like you’ve never seen it before.

An FPV racing drone flew from the top of the Burj Khalifa building to the bottom

[📹 André Larsen]

[Science girl @sciencegirl]

104 skydivers, 20 nations, and one breathtaking world-record moment.

[Discover and Know @factoryfootages]

DUBAI

[In Ukraine @InUKRofficial]

Future is here.
A Ukrainian-made Vampire drone deploys a robotic dog to a frontline position.

[Massimo @Rainmaker1973]

A diver vs a massive school of barracudas

[Visegrád 24 @visegrad24]

Another angle of the Russian drone strike against Ukrainian drivers trying to cross a bridge in Kyiv

[Cosmic Earth @_cosmicearth]

🧠 Your brain is constantly building connections.

Under a microscope, neurons can be seen extending tiny branches, exploring their surroundings and connecting with other neurons.

These new connections form synapses — the communication points that allow brain cells to pass signals.

This microscopic process is part of neuroplasticity, the brain’s remarkable ability to learn, adapt and reorganize itself. ✨

[Justin Brave💡 @justinbrave21]

50 legendary internet rabbit holes you can spend hours exploring👇

1. https://t.co/BKQKtCoHx7 — Watch the world via live satellite imagery
2. https://t.co/skHM6ihO1M — See every plane currently in the sky
3. https://t.co/3wHLr5BTqs — Track all ships at sea in real time
4. https://t.co/wneZoYkXVV — Live map of winds and storms
5. https://t.co/th5qTv4uYt — Watch lightning strikes hitting Earth in real time
6. https://t.co/ugJruuA2MX — Live list of recent earthquakes
7. https://t.co/KjzFm8Mv5H — Ocean cables carrying the internet
8. https://t.co/ihBKAFPlqM — Watch forests disappear from space
9. https://t.co/QO76fqkPBq — The world's statistics, second by second
10. https://t.co/6aNOFkpEaE — Current number of tweets and searches being posted
11. https://t.co/Ng5YgeOtoO — Compare the true sizes of countries
12. https://t.co/8nxdhZQnea — Maps from centuries ago
13. https://t.co/KxBUC8vkvs — Archive of 150,000 historical maps
14. https://t.co/jCKAhsYH7r — World map drawn by volunteers
15. https://t.co/d5QWs5njpu — Look out the window of a random person around the world
16. https://t.co/RKjjmyqV5D — Virtual walks through cities
17. https://t.co/foY7sojylA — Teleport to a random spot on Earth
18. https://t.co/ZJ889iuSUd — Catalog of the world's strangest places
19. https://t.co/wVGZkiJ20o — Interactive knowledge experiences
20. https://t.co/j1VNMfYDcy — Scale journey from atom to universe (Updated HTML5 link)
21. https://t.co/CvOBtl9Vm8 — Explore the solar system in 3D
22. https://t.co/RnlofaWs0Q — Real sky map in your browser
23. https://t.co/1PlQgAjbMU — NASA's astronomy picture of the day
24. https://t.co/2RuTZvWdt3 — NASA's entire visual archive, free
25. https://t.co/beEkHBgT5l — Visual articles told through data
26. https://t.co/RMccQyBARG — The state of the world with real data
27. https://t.co/gNH6mlzyjF — What we mistakenly think we know about the world
28. https://t.co/ZrVElnYKY2 — Visualizing complex data
29. https://t.co/ahtXNpo1de — World Bank's open data
30. https://t.co/ShMYouw5GP — Turkey's official statistics database
31. https://t.co/GqEd2SxdGe — Archive of millions of books, films, and software
32. https://t.co/8ijFqv85Ff — 70,000 free books whose copyrights have expired
33. https://t.co/Gt6dp7gGNG — Record of every book in the world
34. https://t.co/LogFrI4LvX — U.S. Library of Congress digital archive
35. https://t.co/O9XxbTPkbZ — Europe's cultural heritage archive
36. https://t.co/lQg0HnHYrx — America's digital library collection
37. https://t.co/TcOIZ5l4tt — Tour museums from home
38. https://t.co/6wMBrfTaPl — Download artworks in high resolution
39. https://t.co/trYjdzxThm — Archive of 250,000 artworks
40. https://t.co/Jgz9Abg2UC — Forgotten visual treasures of history
41. https://t.co/y4axNFEMBi — Free archive of culture and education
42. https://t.co/wkw7PgTFlB — Met Museum's open collection
43. https://t.co/AZ98yxOlXC — Family tree of music genres
44. https://t.co/UWyCzSQMRQ — Pick a country and decade to listen to that era
45. https://t.co/Q0NMpm9XqQ — Turn Wikipedia edits into audio
46. https://t.co/lT2YvOjawm — Random knowledge well
47. https://t.co/tukI2JCMXp — Time, sunrises, and sky events
48. https://t.co/A8xsuxYqHd — Live stream of science news
49. https://t.co/RrqPEgwNK3 — Free preprints of scientific papers
50. https://t.co/4ZyBN6Hpdk — Visualize data with live code

Save this. You’ll definitely need some of these later. 🔖

Follow @justinbrave21 for more useful websites, AI tools & tech resources.

[Mathematica @mathemetica]

Why can one equation describe both a radio tower’s signal and the rays that image bone?

Every electromagnetic wave obeys c = fλ. Speed in vacuum is fixed, so wavelength and frequency trade off exactly. That relation is what lets phones, MRI, and satellite links share one spectrum.

The universe broadcasts on every channel; instruments simply choose which one to hear.

[Fascinating @fasc1nate]

Every year since taking power, Adolf Hitler gave a speech at the Munich Beer Hall. In November 1939, just after invading Poland, he did so again. Among those watching was a German carpenter named Georg Elser. Hidden in a nearby pillar above Hitler was a bomb Elser had carefully planted.

Elser had spent over a month preparing, knowing exactly where Hitler would stand from previous speeches. Each evening, he secretly worked on hollowing out the pillar to place the bomb, hiding the debris in a suitcase, and leaving unnoticed with the workers each morning. The bomb's timer was set to go off as Hitler’s speech ended.

However, on the day of the speech, Hitler finished earlier than usual and left the hall. Thirteen minutes later, the bomb exploded, destroying the pillar and bringing down part of the ceiling—right where Hitler had stood. If not for his early departure, history might have taken a very different turn.

The most haunting photos ever taken: https://t.co/POrqRRccxc

[Massimo @Rainmaker1973]

Telescopefish, a rare deep-sea creature known for its eyes adapted for spotting bioluminescence.

[Massimo @Rainmaker1973]

A simple painting that uses a couple of pastel, a duct tape and a black board but end up an amazing art.

[Aleksey The Great 🇷🇺🎖 @aleksthgrt]

One of WWII’s Most Chilling Scenes — Moscow, 1944 In July 1944, Moscow witnessed one of the most striking scenes of World War II. Thousands of German prisoners of war were marched through the Soviet capital after being captured on the Eastern Front. The massive column of prisoners became a powerful symbol of Germany’s changing fortunes in the war. For the people watching from the streets, it was a rare and unforgettable sight—thousands of former soldiers of the nazi army now walking through Moscow as captives.

[Massimo @Rainmaker1973]

Another body found on Everest.

Frozen in time, a climber lost decades ago has resurfaced from beneath the unforgiving ice. There are an estimated 200+ bodies of deceased climbers still on Mount Everest.

[Massimo @Rainmaker1973]

White blood cell wandering between red blood cells and checking for harmful organisms.

[Science girl @sciencegirl]

This is awesome

[Massimo @Rainmaker1973]

What smoking does to your body

[cosmic pulse @cosmicpulsee]

THE MOON IS MOVING EARTH'S OCEANS. Every day, Earth's oceans rise and fall because of gravity. The Moon's gravitational pull creates tidal bulges in Earth's oceans. As Earth rotates, different locations move through these bulges, producing high tides and low tides. But the Moon isn't the only player... ☀️ The Sun's gravity also affects Earth's tides. When the Sun, Earth, and Moon align, their tidal effects combine to create a spring tide, producing a larger tidal range. When the Sun and Moon are positioned roughly at right angles relative to Earth, we get a neap tide, with a smaller tidal range. Moon + Earth + Sun = One incredible gravitational system. And the crazy part? The Moon is slowly moving away from Earth, while Earth's rotation is gradually slowing down. The ocean may look peaceful... But beneath the surface, gravity is constantly reshaping our planet.

[BELLUMARTIS @bellumartis]

🚨 ÚLTIMA HORA | PAKISTÁN.

Un vehículo cargado de explosivos atacó una mezquita situada dentro del complejo policial de Kohat, Khyber Pakhtunkhwa, durante las oraciones del viernes. Tras la explosión, varios hombres armados penetraron en las instalaciones, donde se encuentran unidades de inteligencia y del Departamento de Contraterrorismo.
La operación para recuperar el recinto se prolongó alrededor de 20 horas y terminó con ocho atacantes muertos.

El balance de víctimas sigue actualizándose: medios pakistaníes han elevado la cifra a 23 muertos, mientras Reuters recoge una información de AFP que habla de 31 fallecidos. Más de un centenar de personas han resultado heridas.

Un nuevo episodio de la creciente violencia yihadista en el noroeste de Pakistán, junto a la frontera afgana.

TALIBANSTÁN: la peligrosa frontera tribal entre PAKISTÁN Y AFGANISTÁN *Mariano L. de Miguel*
https://t.co/PhssAoXQ9t

#Pakistan #Kohat #Terrorismo #TTP #Afganistan #UltimaHora #ActualidadMilitar #Bellumartis

[Volodymyr Zelenskyy / Володимир Зеленський @ZelenskyyUa]

Report from SSU Head Oleksandr Poklad. There is a good result from the Security Service’s military counterintelligence in defending against jet-powered “shaheds.” A new interceptor drone has been developed and has already been successfully deployed. Step by step, we are moving forward to give Ukraine greater protection. I thank all the developers and manufacturers who work every day to scale up the weapons we need.

Glory to Ukraine! 🇺🇦🇺🇦🇺🇦