\(power \ of \ a \ lens \ (D) = \frac{1}{focal \ length \ (m)}\) A lens has a power of -3.33 dioptres. Calculate the focal length and state what type of lens it is.

SpaceX Starship will go Orbital after the launch tomorrow ... the current ~7,000 V2/v1.5. Six times the satellites with 10 times the bandwidth for high speed internet and I project even high leaps in ...

Samantha Harvey’s novel “Orbital,” which won the Booker Prize last year, has a tight, poetic frame: We follow one day in the lives of six people working on a space station above Earth ...

For the first time, researchers have used lattice quantum chromodynamics to study the interior of neutron stars, obtaining a new maximum bound for the speed of sound inside the star and a better ...