Rob Carter

Space Engineer; 🚀 Rocket lover with a sci-fi mind 🌌

[BBC Breaking News @BBCBreaking]

Nasa reveals crew for Artemis III mission, a test for future Moon landings https://t.co/IEXleIsqlL

[Shounak Das @TheScienceLoop]

Conway's Game of Life. A cellular automaton where birth and death are governed by just two simple rules. From absolute randomness, structured gliders and oscillators emerge organically. Complexity from simplicity.

#GameOfLife #CellularAutomata #Simulations

[Space Investor @SpaceInvestor_D]

You’ve probably never seen fruit flies in microgravity before.

This was an unmanned research demo mission from Genesis Space Flight, onboard their PocketQube class reentry capsule.

[Philosophy Of Physics @PhilosophyOfPhy]

Maxwell’s work on electromagnetic wave propagation became one of the great milestones in natural philosophy.

In his 1865 paper, “A Dynamical Theory of the Electromagnetic Field,” James Clerk Maxwell showed that electricity, magnetism, and light were not separate phenomena, but different expressions of the same electromagnetic field.

Freeman Dyson called the publication of Maxwell’s paper the “most important event of the nineteenth century in the history of the physical sciences.”

Feynman went even further, saying that, “From the long view of this history of mankind – seen from, say, 10,000 years from now – there can be little doubt that the most significant event of the 19th century will be judged as Maxwell's discovery of the laws of electromagnetism.”

Maxwell did not just explain light.

He unified nature in a way that later helped open the road to Einstein’s theory of relativity.

[Mathematica @mathemetica]

Quadric surfaces shape everything from planetary models to architectural marvels.

These diagrams depict the six classic forms - the ellipsoid, elliptical paraboloid, elliptical cone, hyperboloids of one and two sheets, and hyperbolic paraboloid - complete with their cross-sections and defining equations, including x²/a² + y²/b² + z²/c² = 1 for the ellipsoid and y²/b² − x²/a² = z/c (c > 0) for the hyperbolic paraboloid.

Quadric surfaces have practical uses in real life, including hyperboloid cooling towers in power plants, parabolic reflectors in satellite dishes and telescopes, and hyperbolic paraboloid structures in contemporary architecture.

[Quanta Magazine @QuantaMagazine]

How is it possible that a black hole’s surface tells us about its interior volume? This finding is a critical clue towards our understanding of the quantum nature of space-time.
https://t.co/h3xfNaIpbm

[Mathematica @mathemetica]

Understanding uncertainty propagation through nonlinear functions

This diagram compares 3 common approaches:

• Actual sampling: Draw many points from x’s distribution, pass each through y = g(x), then compute the true resulting mean & covariance.
• Linearized (EKF): Approximate using only the mean and Jacobian:
ȳ = g(x̄)
P_y = ∇g P_x (∇g)ᵀ
• Sigma-Point (Unscented): Carefully chosen sigma points are transformed yⱼ = g(xⱼ), then a weighted mean & covariance are calculated; often much closer to the true distribution.

These techniques are at the heart of nonlinear Kalman filters used in robotics, sensor fusion, GPS/INS navigation, and autonomous systems.

[Science & Nature @Sci_Nature0]

3D model of the solar system, driven by the sun's gravitation pull.

The solar system does not look like a flat spinning mobile. The sun hold 99.8% of the mass in the solar system and it's gravity keeps every planet , asteroid and comet locked in orbit around it.

[Shounak Das @TheScienceLoop]

Reaction-diffusion. Two chemicals, one that builds and one that erodes, diffusing at different speeds. Start from basically uniform noise and they self-organise into this Turing pattern. This is the same math behind leopard spots and seashell stripes. Biology is just chemistry that learned to draw.

#simulation #GenerativeArt #Physics

[Michael F Kane @MichaelFKane]

I'm sure some nerds have mathed this out, but I think this is probably 'realistic.'

1. It's a scout vehicle, not a main battle tank, so most likely only lightly armored.
2. If those logs are freshly cut and 'green' they could weigh several tons apiece. The internet says they appear to be 9 meters long and a similar redwood trunk could weight up to 25,000 lbs apparently.
3. F=MA can do serious work, with that kind of weight, even at relatively slow speeds.
4. Especially given that the armor of that vehicle is probably designed to reflect small arms and vehicle fire, not survive being crushed by a weight likely as much or greater than the entire vehicle.

Remember kids, for Newton to do his work, you can just make either mass or acceleration is really big and in this case it appears that mass is disproportionately large for the other numbers lol

[astrophilesz @astrophilesz]

You are looking at the first ever image of another multi-planet solar system.

[Julia Bergeron @julia_bergeron]

My Battle of the Bays series is nearing completion. Introducing Battle of the Builds for your consideration.

The LR13000 has gone vertical at LC-37 so we may soon see Cape's 2nd Starship tower rise. Cranes are staged at the Blue Origin Vertical Refurbishment Facility (VRF) signaling that the foundation work may be ready for columns and walls. Heavy equipment staging has begun for the LC-36 pad clean-up and assessment of steps going forward following the static fire event.

📷 @nasaspaceflight

[Quanta Magazine @QuantaMagazine]

Recently, multiple teams of physicists identified how a quantum property known as “magic” makes space-time’s fabric bendy. Charles Cao, one of the researchers, calls it “the fabric softener of space.”
https://t.co/DoLuozu0Lu

[Chronos Intelligence @ChronosIntelX]

🌌 Astronomers just detected a hypervelocity star racing out of the Milky Way at 2.3 million km/h...
It was flung out by a close encounter with the supermassive black hole at the galactic centre...!
📌 Source: Gaia mission + ground telescope follow up, The Astrophysical Journal Letters May 2026

[Space Investor @SpaceInvestor_D]

$RDW / $VOYG: LunaGrid could emerge as a defining piece of the lunar power infrastructure, with Voyager and Redwire positioned right at the core of it.

Astrobotic’s upcoming Griffin launch (targeting 2026) is the first real testbed for its high-voltage cable, reel, and power conversion system, aiming to push 1 kW-class transmission across 100 to 500 meters on the lunar surface. That demo is the gateway to scaling a true surface power grid.

Redwire’s Roll-Out-Solar-Array is the solar power generation backbone feeding the system, integrated into Astrobotic's Vertical Solar Array Technology (VSAT).

[The Scientific Lens @LensScientific]

Everything from lightning to your phone signal, from sunlight to radio waves… all of modern civilization is built on these four lines of math.

Together with the Lorentz force, they are the complete foundation of classical electromagnetism.

[ScieVision @scievision369]

Lorentz Transformation ✍️

It is a key concept from Einstein's Special Theory of Relativity. It describes how measurements of space and time change between two observers moving very quickly relative to each other, such as one person on Earth and another traveling in a spaceship close to the speed of light. In our daily lives, we assume that time and distances are constant for everyone, but that idea breaks down at high speeds. Time actually slows down for the moving observer (this is known as time dilation), and objects appear to shrink in the direction they are traveling (a phenomenon called length contraction). Events that seem to occur simultaneously for one observer may not for the other. Space and time are mixed together, meaning that position influences time and time influences position. This ensures that the speed of light remains constant for all observers and allows the laws of physics to hold true everywhere. At typical speeds, like those of cars or planes, these effects are very small and often unnoticed, but they become significant as you approach light speed.

[Air Power @RealAirPower1]

Yes, other fighters may have radars with LPI mode and advanced IRST systems, but what truly separates the F-35 is sensor fusion. The aircraft’s central computer acts like a high speed battlefield brain, stitching radar, visual, thermal, and offboard data into a single seamless picture for the pilot. It constantly calculates the quietest and deadliest way to engage and hands it to the pilot on a silver platter. The first time the enemy RWR flickers a warning is when the AMRAAM goes "pitbull" and the engagement is effectively over. All this makes the F-35 the stealthiest predator in the sky, maybe even better then the F-22. 3/3

[Cosmos Archive @cosmosarcive]

Why can't telescopes see infinitely small details?

Rayleigh's Criterion gives the limit of what an optical system can distinguish:

θ = 1.22 λ / D

A larger aperture means better resolution. A longer wavelength means less detail. This simple equation defines the sharpest view a telescope or microscope can achieve.

[Mathematica @mathemetica]

Percy John Heawood proved in 1890 that seven colors are always sufficient to color any map drawn on the surface of a torus so that no two adjacent regions share the same color.

A torus can be constructed by stretching a square until the two pairs of opposite edges can be glued together. Each map used in this Demonstration is a square pattern whose top and bottom match and whose left and right edges match.