Tag: mathsci

Venus if you will (What I find interesting in math and science, May 2025)

 

Venus

Here’s a number of pieces I’ve gathered in the last few months related to science and math that I found worth sharing. A few of them require deeper knowledge on the topic, but many of them are suitable for anyone to read.

in the area of space and astronomy:

Moving on to biology:

Emmy Noether

Regarding mathematics, physics and more:

(Photos – Venus, seen by NASA’s Mariner 10 spacecraft in 1974.Credit: NASA and Emmy Noether Credit: Kristina Armitage/Quanta Magazine)

Space is big. This piece on Space isn’t

Space news comes fast and furious these days. There’s so much exploration going on, it can be hard to keep track. For example, ESA has approved a search for the gravitational echoes of the big bang. Countries that you might not expect, like Mexico, are going to the moon.  Japan is already there. In the USA, here’s some of the many things NASA is up to including going to the moon. Mind you, not everything is going well with the American space program.

Privately, here’s what Jeff Bezos’s Blue Origin is doing. (Here’s more on that.) Not to be outdone, this is some of what SpaceX is trying to accomplish.

Besides the engineering problems of exploring space, there’s also the human problem. For example, can astronauts deal with the isolation of Mars? Space is hard on astronauts physically as well as mentally, as that piece shows.

Not news, but here’s some more good space articles. This is a good piece on the early universe: it’s bananas. 🙂 This, on gamma ray bursts, caught my eye. As did the milky way photographer of the year (shown at the top). Finally, here’s a good story on Jean Pierre Luminet (the man in the photo), who did some first work on black hole imagery.

Let us go to Enceladus! (What I find interesting in math and science, July 2023)


As always, there’s lots of exciting science things happening! The big news recently was the announcement by a group of science organizations, NANOGrav, about the existence of gravitational waves splashing, so to speak, all across the universe. You can read more about it, here. It’s a big friggin’ deal.

Space: Space exploration in general remains exciting overall. Part of that has to do with the incredible amount of missions on the go! China is a nation in a hurry when it comes to space exploration. Out on Mars, the rover they sent there has found signs of recent water in sand dunes. Closer to home, they’re doing lunar research with the Chang’e project. On top of that, they’ve successfully launched their latest mission to the Tiangong space station on Tuesday. Incredible. And good to see.

Not all space news is good. A private Japanese moon lander went into free-fall while trying to land on the lunar surface recently due to a software issue and a last-minute switch in the touchdown location.  More on that, here. I have no doubt we will see successful Japanese missions soon and on the regular.

In other news, the UAE is sending a mission to explore the debris field between Mars and Jupiter. More on that, here.

Of course American space work is ongoing. The  James Webb Space Telescope (JWST) spotted a towering plume of water vapor more than 6,000 miles long—roughly the distance from the U.S. to Japan—spewing from the surface of Saturn’s moon, Enceladus.  More on that, here.

Seeing all this space exploration, it may be time to make these  NASA visions of the future posters for real. (An example is the one for Enceladus, above.)

The billionaires are back at it too. Jeff Bezos’ rocket company is taking astronauts to the moon in 2029. Don’t screw it up, Jeff. More here. Not to be left out, Branson’s Virgin Galactic is going back to space after a 2 year hiatus, says this.

If you are feeling left out, know that you can get in on the action,  thanks to a new program launched by astronomers at the University of Arizona Lunar and Planetary Laboratory. You can help science by reading this and getting involved. 

Don’t hesitate. After all,we are all one GRB from being fried out of existence. In fact it almost happened.

Physics:  It was fun coming across the classic E & M text by Purcell and Morin. A great text book I had in university. For quantum fans, this is a good piece on how Einstein Podolsky Rosen paradox scales up.

Wanting to do your own physics experiment? Here’s how to demo special relativity for a $100 or less. Really! More on the science behind it, here and here. Muons are cool and you can be too if you do that.

Miscellany: I thought this on lagrangian mechanics for beginners was good. Relatedly, here’s something on Euler Lagrange.

Think you can’t do math? Read this: are all brains good at math?

This is some weird science: when flies see the corpses of other flies, they get depressed and die soon. Really!

This was a good piece on cancer and the nervous system. I liked how you can make better decisions by using science.

Also cool: what plants are saying about us.

(Shown above, the  NASA artemis III spacesuit. More on it, here)

All the exciting things happening in space in 2023. Read this and mark your calendar!

If you interested in space as I am, then get out your calendar and mark down 2023’s top astronomical events so you don’t miss any of them. As WaPo says, “With opportunities to wish upon shooting stars, and to see a Super Blue Moon and the Ring of Fire eclipse, 2023 is bursting” with things to keep an eye out for.

One thing in particular is lunar exploration. First up is, NASA’s Artemis mission. As the Verge explains, an Orion spacecraft that is part of that mission has recently returned and safely splashed down into the Pacific Ocean after a recent trip. A good start! And Artemis promises great things in the future. Not only is it part of NASA’s plan to return visits to the Moon, it’s part of NASA’s plan to never leave. The dream of space colonization could become a reality.

And it’s not just the Americans that are interested in going and staying on the moon. The Chinese are too. Who knows what will take place in the next 10-20 years? It’s all very promising.

With all this space travel, this should keep not just government agencies busy, but private companies too. Case in point: After doubling launch record in 2022, can SpaceX take another step up in 2023?

Heck, even you can get involved. Don’t believe me? Then read this: NASA Wants You to Help Study Planets Around Other Stars.

Meanwhile back on Earth, there’s a lot of interest in tracking asteroids coming close to us. NASA and others are getting a handle on tracking the big ones. The smaller ones are much harder. Here’s a piece on one such asteroid 2023bu that recently blew by us. (See the arrow in the photo above pointing to it.)

For my last space piece I want to highlight, this is a worthwhile read on why some people have an issue with the latest space telescope being named after James Webb. You can find many such pieces arguing back and forth on the matter. I think both sides have worthwhile points. I’ll let you make up your own mind.

Not space related, but fun is this piece on how bees actually play — yes play! — with little wooden balls!

Finally, for people interested in physics, this is a good piece discussing where it is headed. One such. direction is the study of dark matter and dark energy.  Here’s a good piece on a dark energy experiment that recently won a big prize. We need more such experiments if we are ever to solve the mystery of dark energy and matter.