In 1962, unlike today, most things didn’t have computers in them. After all, the typical computer of the day was a fragile room-sized box that required a gaggle of high priests to service it. But the Minuteman I nuclear missile was stuffed full of pre-GPS navigation equipment and a co...
How will ballistic missile defences affect nuclear deterrence? This is a question as old as the nuclear revolution but has attained significance in the current security environment wherein nuclear-armed states are increasingly pursuing development and deployment of BMD and their doctrinal integration with...
A mainland military observer said the sale of the optical system was no big surprise, as it could not be used directly to develop long-range MIRVs.They required small nuclear warheads with sophisticated control after re-entry, and it was unlikely China would share such sensitive technology with...
Counting all of these people together as a single consumer group shopping for the end of the world is a bit unfair. 把所有这些人算作一个为世界末日购物的消费者群体有点不公平。 But they do all have three things in common that make them particularly willing to make big investments into big ...
In a bomb that is working properly, more than one neutron ejected from each fission causes another fission to occur. It helps to think of a big circle of marbles as the protons and neutrons of an atom. If you shoot one marble — a single neutron — into the middle of the big circle...
Now, as an increasingly unstrung Vladimir Putin is rattling his atomic sabre, many of us who lived through those days have discovered that the emotional scar tissue we grew 60 years ago is still solid and intact. A lot of serious people are seriously talking about nuc...
How big is the boost from an equatorial launch? To make a rough estimate, we can determine Earth's circumference by multiplying its diameter by pi (3.1416). The diameter of Earth is approximately 7,926 miles (12,753 kilometers). Multiplying by pi yields a circumference of something like 24...
How big is the boost from an equatorial launch? To make a rough estimate, we can determine Earth's circumference by multiplying its diameter by pi (3.1416). The diameter of Earth is approximately 7,926 miles (12,753 kilometers). Multiplying by pi yields a circumference of something like 24...
The area under the line is the integral. We a bunch of triangles above the line we need to include. How many of them? 1 for each item (x) How big are they? They're half a of a 1x1 square, so they have area 1/2. What's the total area to add back in?x12=x2 ...
Artwork: The three main parts of a cartridge. 1) The primer "launches" the bullet by igniting the propellant. 2) The propellant accelerates the bullet down the gun. 3) And the bullet proper (the red and yellow bit at the end) is the part that exits the gun, flies through the air,...