- Tigers may be extinct within 12 years
- Amur leopards - of which only about 35 are thought to exist in the wild - may be extinct within 3 or 4 years.
- In the 70s and 80s, 18,000 jaguars were killed each year for their fur. The numbers are still rapidly declining.
- Half of Africa’s lion populations face extinction within the next 40 years.
Credits are noted in the image.
That was the most informative thing I have ever been told by a duck
And I have been told a lot of things by ducks.
One of my friends got chased by little piggies during his bike ride
this is the opposite of a problem
A new paper published in the journal Optics Express describes a system for focusing light from streetlamps directly on the area required, with almost no light leakage horizontally or vertically. Conventional street lamps scatter up to 20% of their energy away from where it is required, not only wasting power but also leading to light pollution which obscures your view of the night sky.
The proposed LED lamp uses a lens to limit where the light is projected, with a reflecting cavity to recyle light that would otherwise be wasted. The team thinks the system would use between 10 to 50% less power to illuminate a section of road than current LED streetlamps, which are already more efficient than regular lamps.
A prototype is being developed and is hoped to be completed this October.
i wonder how many girls have reblogged this
Probably 99% of the notes