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Feb 082017
 

From the standpoint of solar irradiation, the recently announced Proxima b planet seemed to be in the “life zone.” Small problem: while the total amount of sunlight falling on the planet approximates the amount Earth gets, it also gets other stuff far more abundantly than Earth does. In particular… nasty stuff. Stuff that would trash an Earthly atmosphere in a geological blink of an eye. In short: every two hours Proxima would send a storm of X-Rays and ultraviolet from superflares blasting into the atmosphere of Proxima b, ionizing the oxygen and accelerating its escape into space. It’s estimated that the oxygen atmosphere would last about 10 million years.

NASA Redefines Life Zones for Alien Planets –“Nixes Earth-Sized Planet of Our Closest Neighbor Red Dwarf Star Proxima Centauri”

Bummer.

Seems red dwarfs, the most common stars out there, are likely not going to be terribly good places to find Earthlike worlds. It *may* be that roughly Earthlike worlds might be found further out from the stars, Of course they would be frozen iceballs… unless they were in close enough orbit to massive companions, gas giants perhaps, that tidal forcing would pump enough energy into their cores to keep them warm. This would present its own set of troubles, such as being tidally locked to the gas giant, and common and likely astonishing earthquakes.

 

 Posted by at 9:08 pm
Feb 072017
 

In December of 1948, American media outlets reported that Defense Secretary Forrestal had announced that the US wanted a space station for military purposes. The US had, in fact, been working on space for military applications since the end of World War II with both the US Navy and US Air Force studying space launch systems as early as 1944. However, the 1948 space station was most likely just a talking point, something that the Pentagon would *like* to have for any of a number of military purposes. So far as I’m aware, no actual designs produced by relevant government or corporate design bureaus have come to light. Still, the lack of anything firm to base an artists impression on didn’t slow down the media; a number of newspaper and magazine artists impressions were produced. Many of them, such as the one below (from the December 31, 1948, Washington Daily News, via an EBay auction), demonstrate a substantial lack of understanding of, well, *everything*. They tended to be a weird mishmash of Flash Gordon sci-fantasy with the V-2 and similar exotic and half-comprehended technologies.

Note that this cartoonish “space station” seems to have it all… radar, giant cannon barrels and a square mirror to reflect sunlight to set the enemy alight. This, of course, would not work.

 Posted by at 9:40 am
Feb 052017
 

My first idiot thought was “this is what dancing in zero gravity will look like.” Then I actually put some thought into it and realized “no, it won’t.” Not even a little bit. The majority of the moves here are reaction-driven… airflow pushing differentially on the body due to the aerodynamic configuration of the moment. In zero-g, this sort of airflow would promptly cause the subject to get sucked into the fan inlet or blown out the hole into space; if there’s no or minimal airflow, the dancer might still make the moves, but there’ll be little in the way of actually spinning and tumbling, and none in the way of swooping around. To make that happen a dancer would have to be equipped with some form of reaction control system. *Possibly * (but unwisely) done with compressed gas jets at the hands and feet; the environmental control system would have to compress the atmosphere just as fast as the dancer releases thrust-gas, or else the environment will begin to overpressurize. Another solution would be to have fan-based thrusters at hands and feet. Maybe a backpack turbocompressor. Any case would doubtless be noisy as hell. Power consumption for the fans, reaction mass consumption for the cold gas system would all be quite high. Substantial risk of banging into stuff or losing control and spinning dangerously fast. Those are all very good points. But, consider this: the dancer would get to fly around like Iron Man.

 Posted by at 6:32 pm
Feb 042017
 

I defy anyone who remembers the seventies to remember them fondly *and* accurately after seeing these mens fashion abominations. I suspect that the combination of stresses – Viet Nam, massive cultural shifts, the constant threat of nuclear annihilation at the hands of the Soviets, hippies – drove the population temporarily insane.

Note: dates are in the filenames. Pics are after the break to protect sensitive eyes from these horrifying visions from the dim, dark past.

Continue reading »

 Posted by at 9:10 pm
Feb 042017
 

SpaceX Falcon 9 Rockets Prone To Cracks According To Government Watchdogs

Well, crap. Seems the blades of the turbopumps crack more than they should… to the point where NASA has apparently said that they form an unacceptable risk for manned launches. Additionally, it’s reported that neither SpaceX nor Boeing will be able to lunch astronauts into orbit in 2018… meaning the US will need to rely on the good graces of the Russians for that much longer.

 Posted by at 12:11 am
Feb 032017
 

Man sets off explosive at Cheesecake Factory in Pasadena; no injuries

The article is loaded with a lack of details. A homemade explosive that gave off a lot of smoke but caused no injuries and minimal damage… some sort of smoke bomb, perhaps? Or a pipe bomb that fizzled? A Molotov cocktail that didn’t bust open?

And then there’s this fountain of data:

The suspect was described as about 6 feet tall with a thin build and a heavy beard. He was wearing all black clothing and a black beanie.

The was a six foot tall man with a beard. Maybe white. Maybe black. Maybe Indian. Maybe Japanese. That beard could have as easily been blond as black or red.

 Posted by at 7:35 pm
Feb 022017
 

… to burn the joint down.

Protests, Violence Prompt UC Berkeley to Cancel Milo Yiannopoulos Event

Leftists responding with a terroristic temper tantrum?

Here’s a woman being interviewed and then getting assaulted for having the wrong politics:

And here they are beating a man down in the streets, and then continuing to beat on him once he’s down:

Probably safe to assume that we’ll be seeing a whole lot more of this sort of thing. A few days back someone sucker punched Richard Spencer in the street. Not that big a deal on its own… just one guy hitting another guy. Spencer is the “alt right” guy who did the “hail Trump” nonsense a while back, a “neo-Nazi” feller. After Spencer was punched, there was a *lot* of chatter online about whether it was ok to physically assault Nazis, and the general consensus seems to have been “yes.” On one hand… fark Nazis. But on the other hand, the Left has spent *years* tossing the “Nazi” epithet around, calling anyone who disagrees with them a Nazi or a fascist. So they have in essence been making the argument that it not only acceptable but *praiseworthy* to physically assault Republicans, libertarians, centrists… anyone they don’t agree with. Hell, **I* have been repeatedly called a fascist over the years when I have argued in favor of a small government that is Constitutionally restrained and limited in power with minimal negative impact on the freedoms of the citizenry. These jackholes don’t know what “fascism” really means, but they do know that it’s ok to attack fascists and that they can declare anyone they like a fascist.

So… yeah. Get used to this.

 

 Posted by at 10:17 am