Ornithology

Follow 0 fans

ExP

In computational complexity theory, the complexity class EXPTIME (sometimes called EXP or DEXPTIME) is the set of all decision problems that are solvable by a deterministic Turing machine in exponential time, i.e., in O(2p(n)) time, where p(n) is a polynomial function of n. EXPTIME is one intuitive class in an exponential hierarchy of complexity classes with increasingly more complex oracles or quantifier alternations. For example, the class 2-EXPTIME is defined similarly to EXPTIME but with a doubly exponential time bound. This can be generalized to higher and higher time bounds. EXPTIME can also be reformulated as the space class APSPACE, the set of all problems that can be solved by an alternating Turing machine in polynomial space. EXPTIME relates to the … more »

2:29

0 Views

 Watch: New Singing Lesson Videos Can Make Anyone A Great Singer

I've been trying to learn which bird I heard was singing
And you might think that that's not cool but who cares
Bird watching's in my family, my Grandad I never knew
Used to watch and paint them I've got some that he drew
My Dad birdwatched to connect with him when he passed
And when I was a kid, do you think I gave a crap?
But then he passed and I see what the fuss is about
Massive thing in the sky is a buzzard no doubt
Red kite: forked tail, hangs in the air
Anything big that aren't them two it's probably rare
I obsess over swifts, they land before summer
Each year they come over they're decreasing in number
Welled up more than once watching them scream at each other
Zipping overhead collecting their fly supper
I'm a sucker for a nuthatch, a sucker for a robin
Love hearing a tawny owl, don't see them very often
Ange got the bird seed filled to the brim
Got them anti-squirrel feeders cos those guys were going in
And get great spotted woodpeckers
When they attacked our bird box full of blue tits it upset us
Suppose, that's how nature goes, innit
Once we had a sparrowhawk eating a pigeon
I scared it off by accident, trying to get a picture
Pigeon wasn't quite dead so I had to kill it
Stamped on its head, at first didn't quite get it
Worst moments of my life, that'll make the edit
But good to know there's birds of prey doing their thing
Hate hearing stories of farmers persecuting them
So many species declining due to habitat disturbance
But British buy more bird food than anyone in Europe
So with a little bit more interest in avian life
We might undo some damage instead of paying the price
Get your RSPB membership and take it for hikes
Get some cheap binoculars, do summat you may even like
People act like it's friggin' train spotting
But I genuinely believe hearing bird song is pain stopping
Just listening's superb, even in the 'burbs
Rap and ornithology, I'm fine with being a nerd
They're on tour, getting bread, giving it to birds
I'm in my garden, with some bread, giving it to birds
They're on tour, getting bread, giving it to birds
I'm in my garden, with some bread, giving it to birds

 Watch: New Singing Lesson Videos Can Make Anyone A Great Singer