The Revolving Heavens

Mobile Internet from the Heavens

Almost two-thirds of the humankind currently does not have access to the Internet, wired or wireless. We present a Space Internet proposal capable of providing Zetabyte/ month capacity which is equivalent to 200GB/month for 5 Billion users Worldwide. Our proposal is based on deploying thousands of low-cost micro-satellites in Low-Earth Orbit (LEO), each capable of providing Terabit/s data rates...

The Revolving Door

The revolving door between the government and the private sector has long been presumed to lead to the capture of regulators by industry interests. A growing body of empirical literature, however, either finds no conclusive evidence of a capture effect or finds evidence of an opposite effect that the revolving door indeed results in more aggressive, not less aggressive, regulatory actions. To a...

Neutrinos on Earth and in the heavens

Recent data lead us to a simple and intriguing form of the neutrino mass matrix. In particular, we find solar neutrino oscillations to be nearly maximal (and rule out the small-angle MSW explanation of solar neutrino observations) if relic neutrinos comprise at least one percent of the critical mass density of the universe. 08/98 ∗ Research supported in part by the National Science Foundation u...

Revolving Door Scenario for

IN THIS ISSUE In this issue of Physics & Society, we continue our series on the risks of nuclear weapons after the Cold War. In their article Illicit Trafficking of Weapons-Usable Nuclear Material: Facts and Uncertainties, Lyudmila Zaitseva and Friedrich Steinhausler have provided us with a very detailed look at what is known about the smuggling of fissile materials. They have also provided a r...

The Fusing and Separating of the Heavens and the Earth