In “Physics of the Future” Michio Kaku states “Today your cell phone has more computer power than all of the NASA back in 1969, when it placed two astronauts on the moon.” and in the fictional movie “Iron Sky” the space ship “Götterdämmerung” is operated by a smart phone. So what is actually the computational… Continue reading Cell phone supercomputers

YouTube Error: An integer overflow occurred. On YouTube a video has been watched more than 2,147,483,647 times, a number that can not been represented by a (signed) 32-bit integer.

Math in WordPress has become as easy as $1,2,3,\dots$ thanks to MathJax. Some trigonometric identities: \begin{gather} \sin\alpha^2 +\cos\alpha^2 = 1 \\ \sqrt{2}\left|\cos(\alpha/2)\right| = \sqrt{\cos(\alpha) +1} \end{gather} The Dirac equation for a relativistic electron: \begin{equation} \mathrm{i}\hbar\frac{\partial\Psi(\vec{r}, t)}{\partial t} = \left(c\vec{\alpha}\cdot\left(\hat{\vec{p}}- q \vec{A}(\vec{r}, t) \right) + q \phi(\vec{r}, t) + mc^2\beta \right)\Psi(\vec{r}, t) \end{equation}

The Sputnik crisis shocked the US policy as well as the US science in 1957 when the Soviet Union launched Sputnik 1, the first Earth satellite. The launch of Sputnik 1 showed clearly that the US had lost its leadership in space technology. In 2002, the Computnik crisis followed when Japan introduced its Earth Simulator,… Continue reading Computenik 2.0