The energy that is needed to make an electron jump from the valence band to the conduction band is called the âenergy gapâ. In a macroscopic piece of matter it is the equivalent of the excitation energy from the ground state to the first excited level in free atoms. Hope that was unerstandableâ¦.
He was created by A.A. Milne. The first collection of stories about the bear was the book Winnie-the-Pooh (1926) and this was followed by The House at Pooh Corner (1928). Milne also included a poem about the bear in When We Were Very Young (1924) and many more in Now We Are Six (1927).
The first collection of stories about the character was the book Winnie-the-Pooh (1926), and this was followed by The House at Pooh Corner (1928). Milne also included a poem about the bear in the children's verse book When We Were Very Young (1924) and many more in Now We Are Six (1927).n the first chapter of Winnie-the-Pooh, Milne offers this explanation of why Winnie-the-Pooh is often called simply Pooh: But his arms were so stiff ... they stayed up straight in the air for more than a week, and whenever a fly came and settled on his nose he had to blow it off.