Global warming may actually benefit food production all over the northern countries. For example, places like Russia and Canada will be able to grow a lot more crops because of opening up of ice-covered lands.
In coming times, they may well be the food superpowers of the whole world, because in most other places, food production would be declining.
Holographic Versatile Disc ( HVD ) is a new type of storage device . It can store much more data than a blu-ray and still be of the same size.
HVDs can potentially store 1Tb of data, which is stupendous. They can very well replace the blu-ray .
Ion Thruster is a thrusting mechanism which is alternative to chemical propulsion used today.
This propulsion uses Lorentz force to accelerate ions.
It can be used for a huge number of purposes. Accelerating ions can provide thrust for a spaceship or satellite.
This technology is better than chemical propulsion in some ways. But, there are some limitations as well.
Once those limitations are overcome, such a rocket can be very well feasible.