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Map of Computer Science Teacherflix 21 Views • 8 months ago

The field of computer science summarised. Learn more at this video's sponsor https://brilliant.org/dos

Computer science is the subject that studies what computers can do and investigates the best ways you can solve the problems of the world with them. It is a huge field overlapping pure mathematics, engineering and many other scientific disciplines. In this video I summarise as much of the subject as I can and show how the areas are related to each other.

#computer #science #DomainOfScience

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A couple of notes on this video:
1. Some people have commented that I should have included computer security alongside hacking, and I completely agree, that was an oversight on my part. Apologies to all the computer security professionals, and thanks for all the hard work!
2. I also failed to mention interpreters alongside compilers in the complier section. Again, I’m kicking myself because of course this is an important concept for people to hear about. Also the layers of languages being compiled to other languages is overly convoluted, in practice it is more simple than this. I guess I should have picked one simple example.
3. NP-complete problems are possible to solve, they just become very difficult to solve very quickly as they get bigger. When I said NP-complete and then "impossible to solve", I meant that the large NP-complete problems that industry is interested in solving were thought to be practically impossible to solve.

And free downloadable versions of this and the other posters here. If you want to print them out for educational purposes please do! https://www.flickr.com/photos/95869671@N08/

Thanks so much to my supporters on Patreon. If you enjoy my videos and would like to help me make more this is the best way and I appreciate it very much. https://www.patreon.com/domainofscience

I also write a series of children’s science books call Professor Astro Cat, these links are to the publisher, but they are available in all good bookshops around the world in 18 languages and counting:
Frontiers of Space (age 7+): http://nobrow.net/shop/profess....or-astro-cats-fronti
Atomic Adventure (age 7+): http://nobrow.net/shop/profess....or-astro-cats-atomic
Intergalactic Activity Book (age 7+): http://nobrow.net/shop/profess....or-astro-cats-interg
Solar System Book (age 3+, available in UK now, and rest of world in spring 2018): http://nobrow.net/shop/profess....or-astro-cats-solar-
Solar System App: http://www.minilabstudios.com/....apps/professor-astro
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Birds | Educational Video for Kids Teacherflix 55 Views • 7 months ago

PREMIERES! 👉 https://www.youtube.com/playli....st?list=PLLF_mZmNqOn
AMAZING ANIMALS https://www.youtube.com/playli....st?list=PLLF_mZmNqOn

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Educational Videos and songs for Kids. In this video we’re going to learn about the birds.

They are so diverse, and there are so many colors and shapes, it's fun to learn about them. For example, this tiny little hummingbird doesn’t look anything like this huge ostrich. And these penguins don’t look much like this peacock with its large fan-shaped tail. Well, they may not look alike, but they’re all birds, and have many things in common.
Birds are oviparous... which as you know, means that they reproduce by laying eggs. The females lay the eggs in nests, in the rocks... or on the ground... And with the heat of their bodies, they incubate the eggs until the little chicks hatch.
Birds don’t have teeth, they have beaks or bills... And these can be very different, depending on what that species of bird feeds on.
They breathe with their lungs, that are connected to... bags full of air... called air sacs... and these help birds to fly. Also, nature, which is very clever, has made their bones hollow, so they weigh very little, and because of this it’s much easier for them to fly.
The skin of birds is covered with feathers: these protect them from the cold and heat. Birds have four limbs, the back ones are legs... and the front ones are wings. Together, the wings and feathers are essential for them to be able to fly... and in some cases... so they can swim.
Birds are terrestrial and most of them can fly. Can you think of any birds that can’t fly? That’s right!!! Penguins and ostriches are two species of birds that cannot fly.
Birds have four types of feathers: those that cover the whole body; flight feathers in the wings that help them to fly; down feathers, which cover the chest and belly and maintain the body at a constant temperature; and tail feathers that help guide the birds’ body like a rudder on a boat.
Birds can be classified into several groups, according to what they eat: herbivores feed on plants and grasses – their beaks are short and strong, and can crush seeds and grains. When they only eat grains, they are called granivores.
Carnivorous birds hunt and eat other animals, using their strong, curved beaks. Within the group of carnivores there are insectivores, that only eat insects, and piscivores that only feed on fish. These birds have pointed beaks that are long and sharp to help them catch the fish. Remember - birds that eat fish are called piscivorous.
The last group - omnivorous birds - includes pigeons and hens, and they eat almost anything.
So remember: birds are oviparous, which means they reproduce by laying eggs; their mouths are beaks or bills and they breathe with their lungs; their skin is covered with feathers; and depending on the food they eat, they can be herbivorous... carnivorous... or omnivorous.
So, now you know a lot more about birds.
Goodbye, everybody, and don’t forget to subscribe to Happy Learning!!!