If Afghanistan's growth rate remains the same (which is very unlikely and the country's projected growth rate for 2025 is a mere 2.3%), then the population of 30 million would become 60 million in 2020, 120 million in 2035, 280 million in 2049, 560 million in 2064, and 1.12 billion in 2078!
The Mysticism of Downforce. Downforce is the secret voodoo of motorsports. If you don't embrace it, you won't be fast. We take a lesson in the Wolf GB08SM Turbo.
Exhaust Driven (Blown) Diffusers. Rear downforce is very important for driver confidence. If the driver feels good rear end stability he will push harder, so the gain on the stopwatch from this kind of development is often not what a simulator tells you it will be, but what the driver actually delivers from it.