sciencehabit writes: Ever feel like you could use a little jolt to perk up your brain? Six epilepsy patients recently got exactly that. While they were in the hospital awaiting surgery to mitigate their seizures, they volunteered for an unusual experiment: Taking advantage of platinum electrodes surgeons had implanted in the patients' brains, researchers zapped the volunteers with mild pulses of electrical current. The jolts enhanced the patients' ability to learn their way around a virtual city.
If you sell diamonds, you cannot expect to have many customers.
But a diamond is a diamond even if there are no customers.
-- Swami Prabhupada