CathodeRayNoob t1_iyblaya wrote

I'm referring to the use of 3d printing in mass production.

Mass production of modern jet fighters is dozens of units; not millions. 3d printing has been cheaper than tooling for various parts for decades.

I'm not necessarily knocking the Chinese; they are masters at traditional tooling and manufacturing in ways we simply don't have the talent base to replicate. But for the same reasons, we are decades ahead in additive manufacturing and Uncle Sam only knows how far ahead in aerospace technology.

I'm more knocking the headline that 3d printing is new or advanced in the field of aero defense.


CathodeRayNoob t1_iy9zrqe wrote

>This quotation is usually coupled with a colorful anecdote, but the details of the stories vary greatly. Here is an account from the economics writer Stephen Moore that was printed in the Wall Street Journal in 2009. Moore stated that he used to visit Milton Friedman and his wife, and together they would dine at a favorite Chinese restaurant: [2]

>At one of our dinners, Milton recalled traveling to an Asian country in the 1960s and visiting a worksite where a new canal was being built. He was shocked to see that, instead of modern tractors and earth movers, the workers had shovels. He asked why there were so few machines. The government bureaucrat explained: “You don’t understand. This is a jobs program.” To which Milton replied: “Oh, I thought you were trying to build a canal. If it’s jobs you want, then you should give these workers spoons, not shovels.”

>Cheap and disposable yes, then just build another. It's a great way to keep your population employed

Labor should be necessary and fulfilling. Not arbitrarily maximized.

The worst part about cheering for a cheap and disposable design is that there is still a pilot in that jet. China might find it's pilot's disposable but America doesn't have the same notion of its' pilots.


CathodeRayNoob t1_ixxq7cv wrote

Sane people have taken the vaccine, gotten covid, and understand it’s essentially a new common cold.

Sucks to suck if you are an antivaxxer but covid isn’t a problem for the rest of us now. RSV and immune system “atrophy” are the problems now.


CathodeRayNoob t1_ir33o7m wrote

Is it the lack of sufficient spectrum coverage? Certainly Red and Green are commercially viable since they’re hitting TVs.

Does anyone know what primary spectrum of current PVs absorb is? If quantum dots let us focus on high energy blues and violets/ultraviolets then it could be worth it from cell degradation alone. Assuming the quantum dots don’t deteriorate over time. I have no idea, I just assume they’re solid state since they are allegedly better than phosphors.