This model with a double-sided display and 16 complications -- including a minute repeater, a second time zone and the equation of time ... solar and sidereal time, each powered by its own ...

BEFORE the time of the Scotch geologist ... and would shorten the sidereal year. He knew that observation does not disclose any variation in the length of the year. An easy explanation would ...

In response, the physicists propose new definition of Markovianity. Traditionally, Markovian dynamics are defined for positive times only, introducing an implicit arrow of time. The researchers argue ...

Black hole singularities should not exist, according to theories of quantum mechanics. New tweaks to Einstein's equations of ...

In view of our new president’s 180-degree turn on Ukraine and his recent remarks on the beleaguered Ukrainian president, Volodymyr Zelensky, it is high time for Republican senators to stop ...

Kylian Mbappe scores a hat-trick as Real Madrid beat Manchester City 3-1 in the second leg of their Champions League knockout round playoff to breeze into the next stage of the competition. Carlo ...

The system for scoring points in Formula 1 has changed a lot over the years, but the root concept has stayed the same — the higher you finish, the more points you get. The 2022 season saw a ...

Equation 1 addresses the objective function, that the total cost of the port is the lowest, and has three components: the first term is the cost of the quay cranes service, the length of time the quay ...