1 The cerebrum makes up 85 percent of the brain's weight. 2  It contains about 86 billion nerve cells (neurons), the gray matter. 3  It contains billions of nerve fibers (axons and dendrites), the white matter. 4  These neurons are connected by trillions of connections, or synapses.
Making a Mammoth splash: The longest water-coaster in the world. These are the first images of the world's longest water-coaster - a ride that is guaranteed to make a splash when its (flood) gates open next year. The Mammoth, which cost $9 million (Â£5.5 million) and features a five-storey drop, will open at Holiday World & Splashin' Safari, in Santa Claus, Indiana, in May 2012.
Kingda Ka is the world tallest and fastest roller coaster in the world. Kingda Ka is located at Six Flags Great Adventure in NJ. Kingda Ka is 456 feet tall and goes 128 mph. I â¦ t takes 3.5 seconds to get to top speed, (from 0 mph to 128mph).