"Seven satellites were destroyed as radiation knocked out their solar arrays or electronics, including the first commercial relay communication satellite ever, Telstar."
Such an explosion today would probably cripple global communications for a month. The device used in this test had a 1.4 Megaton yield, and present speculation paints Israel as the sole, non-NNPT signatory that may possess megaton devices, which is not to imply Israel has any obvious motivation for doing something like this in the near future.
However, as the number non-NNPT signatories grow in number and in yield stockpiled, so does the risk of someone (again) triggering such an explosion intentionally.
When I was in the Air Force, our equipment was archaic by the standards of contemporary consumer electronics, lots of electro-mechanical stuff. But with its shielding, it was nearly bulletproof. No worries about EMP, or "Wargames" silliness.
Note that if you're willing to deal with the fallout, you can double the yield of a design like the Tsar Bomba by switching the fusion tamper from lead to U238. I'd suspect the SS-9/18 family 25 Mt warheads achieved their yield by using the latter due to the weight savings (a bit more weight doubles your yield, and if it's exploding on enemy territory...).
We may have tested one to many nuclear warheads in our time but for the most part they did lead to a better understanding. The fallout's damage is negligible.
From my readings many years ago we were pretty sure the Soviets had discovered the EMP effect that Starfish Prime revealed to us. Imagine the possible consequences if we'd remained innocent of the phenomena.
I also wonder how much of what we "know" is based on simulations based off the inadequate data we captured in this one test.
funny, but I bet given the time period the sats were mostly US or Soviet and the folks running the op may not have minded losing some US sats if it meant learning what would happen to the Ruskie sats -- by total accident, of course!
When I was younger and learned about all the bat shit crazy stuff like this the US military was doing with nuclear weapons, I assumed that it would cause long term insidious effects on human health, even if it happened only in indirect ways via the ecosystem and atmosphere. Today, I'm not convinced either way. But when there are reports saying cancer incidence has increased over the last half of this century, and you add to that picture all the crazy nuclear testing that went on plus all the new chemicals put into agricultural soil, food, water, etc. and the rise of plastic containers, all without any valid long term health testing done beforehand, you can't help but think there's going to be a connection.
"Hey lets's have a naked roof party and watch the nuclear bomb explode in the sky because it'll be groovy, baby!!!"
Because detonating nuclear weapons on the earth, in the earth, in the oceans, in the air, and in space near the earth, could not possibly cause cancer.
Remember, the radiation changes from this stuff is lost in the background noise you get from materials released when burning coal, or from the minute amounts of radioactive material in bananas, or the radioactive materials in smoke alarms.
This sort of seemingly naive Disney-like way of dealing with and communicating about nuclear weapons -- esp in material produced for the public by the US defense/energy depts from the 50's to the 70's -- is what directly inspired the style and sense of humor shown in the Wasteland/Fallout games.
Others reported that radioactive particles from Starfish Prime descended to earth seasonally and accumulated in terrestrial organisms such as fungi and lichens.[citation needed]
> Wilmot Hess reported in 1968 that some Starfish electrons remained for five years
I guess that came unexpected.