It started with Bill Nye @itstartedwithbillnye-blog - Tumblr Blog

my first gif of the dragon curve was lonely so i made it a friend

Faraday’s Law of Electromagnetic Induction

The ball (also a magnet) is falling quite a bit slower than expected (despite the slow motion). This can be attributed to Faraday’s Law:

When a conductor is exposed to a changing magnetic field there is a current created within the conductor. Or more technically a magnetic flux changing over time produces an electromotive force across a conductor.

That’s not the whole explanation though…

Lenz’s Law

When the magnet is falling the current in the cylinder is producing a magnetic field as well. Lenz’s Law states:

The induced current will produce a new magnetic field that will oppose the change in magnetic flux.

The produced field applies a force to the magnet resisting its fall. If the tube is long enough the magnet will reach a constant velocity because the magnetic force and weight will cancel each other out (no net force).

This works like air resistance on a falling object. Eventually the resistance completely counters the gravitational acceleration of the object.

Faraday’s and Lenz’s Laws basically tell us that the faster the magnet moves the more the conductor (tube) will resist the magnet’s fall.

Watch this Veritasium video on the same concept and see this phenomenon in real time.

szimmetria-airtemmizs

The sea.

Each color is a sine function. The height is constant because sin(t+0*2*pi/5 )+ sin(t+1*2*pi/5)+sin(t+2*2*pi/5)+sin(t+3*2*pi/5)+sin(t+4*2*pi/5)=0 for all t value.

In a column the i-th segment have length sin(t+i*2*pi/5)+1, so the height is always 5.

sixpenceee

Representing what a radian is. For any of my followers who are taking math or physics classes, or are just curious.

asapscience

Fibonacci all day, every day [http://bit.ly/2jiUBF6]

paulsmathgifworshop-blog

A line segment of the same length as the side of a square moves around inside square, keeping both ends on the square. Points along the line segment trace out ellipses with their paths!

writtenbymadeline

A tool to use for find Synonyms: Synonym Finder.

This is a great, unique little tool I found by browsing for writing resources. It’s name speaks for itself: it’s a synonym finder.

The site is clean cut, has soothing colors, and to-the point results for any word you look up.

For example, when I look up the word “romance,” I get this:

Synonyms: romance, romanticism Definition: an exciting and mysterious quality (as of a heroic time or adventure)

Hypernyms: quality Definition: an essential and distinguishing attribute of something or someone Usage: the quality of mercy is not strained—Shakespeare”

I had no idea what a “hypernym” is. Apparently it’s a word with a more general meaning that a more specific word fall under. Like, color is a hypernym for green.

On the right corner there’s a button to make graphs! So you can trace each synonym from it’s root word, and see how far the other synonyms connect in comparison to others.

I really like it, so I’m going to definitely bookmark it on my writing tools list.

themounts

Types of matter

Why it started with Bill Nye?

As we go through school sometimes teachers manage to find things that just make things click and make us curious and exited to learn. The earliest example I can remember is in grade three we would watch Bill Nye and every one would get so exited. Now the internet is able to provide a more diverse source of these little gems that spark curiosity and interest. I always come across them and think "I wish a teacher had shown me in class" So I made a place I can share them.

#teaching #school

More gifs to help make math concepts click: http://www.iflscience.com/brain/math-gifs-will-help-you-understand-these-concepts-better-your-teacher-ever-did

#math #math 10 #math 20 #math 30 #homwork #homework help #school #animated diagram

#English #school #homework #homework help

birdandmoon

Venomous vs poisonous! The animals are: northern copperhead, cane toad, tiger keelback snake, hooded pitohui, northern short-tailed shrew.

#science #biology

alextheparrotfish

Oh google this is why we love you

itstartedwithbillnye-blog

Super useful app. I use it in the morning to get ready but you can use it for anything, it’s great if you need a step by step list with audio or visuals to go with it. It’s called stepping stones and it’s free on iTunes but I don’t know if it’s for android too.