Things you were taught at school that are now wrong

[Rofesleg]

It travels both inside and around the wire. Without the electro magnetic field surrounding the wire you have no electricity. The electrons do flow in the wire but that doesn't create electrical energy. The magnetic field creates the electrical energy.

Considering that light and electromagnetism are the same force and light doesn't need a wire then neither does electricity. Electrical energy is a cross factor of electrons and magnetism. If you then consider ac current it just wouldn't work if electricity worked the way you are taught in schools. You would have as much energy going back to the power station as leaving it. The energy is directed radially outwards in appliances even though the electrons are moving in 2 different directions. Combine it with magnetism and you get a cross product vector that lights a bulb.

I can see why they don't teach this in schools

I feel safer if I remember it is potentially dangerous to touch a wire but probably not so much if I am just in the vicinity of a wire.
In most situations anyway. If I am in an environment where the air around my toaster is full of electricity that might kill me then I've wandered out of my depth and I'm probably fcked anyway.

And for all intents and purposes, in my normal life a triangle = 180 degrees. Unless of course I'm trying to accurately fold a napkin the size of Africa.

 

[Laughing]

I feel safer if I remember it is potentially dangerous to touch a wire but probably not so much if I am just in the vicinity of a wire.
In most situations anyway. If I am in an environment where the air around my toaster is full of electricity that might kill me then I've wandered out of my depth and I'm probably fcked anyway.

And for all intents and purposes, in my normal life a triangle = 180 degrees. Unless of course I'm trying to accurately fold a napkin the size of Africa.

In the real world the geometry of triangles doesn't work. We live on a sphere. As for being safe standing near a wire, let's get onto neutrons bombarding your body.

 

[Alexander Supertramp]

The British empire was coloured red on my globe


My dad said it was red to signify all the bloodshed we inflicted

 

[Rofesleg]

In the real world the geometry of triangles doesn't work. We live on a sphere. As for being safe standing near a wire, let's get onto neutrons bombarding your body.

I understand the sphere business, but it doesn't really effect any triangles I use in my stickle brick set or doodles I draw on my notepad. That's my real world. Not planning flight paths and pipelines. Or massive walls across countries. Or designing large buildings. Or motorways. Or stuff like that.
And I'm not going to wear lead underpants and a special mask to protect myself from bombardment. Mind you, I did used to experiment with a battery on my tongue and a wet finger at the other end.

 

[Glover_elbow]

Teachers would hit left handers with a ruler to make them write right-handed

my mother was taught by the nuns to write with her right hand despite being left handed.

 

[Otto42]

If you work hard you’ll get a well paid job!

So much in life ends up being about who you know and being in the right place at the right time. So those who aren’t rich aren’t necessarily those who haven’t put in the graft and success isn’t defined by money.

 

[kuepper]

We'll all be speaking German by 2000

 

[ThePrisoner]

We'll all be speaking German by 2000

What a waste French and German lessons were. We should have been learning Mandarin all along.

 

[Brian Marwood]

What a waste French and German lessons were. We should have been learning Mandarin all along.

Or Spanish

 

[JackG]

What a waste French and German lessons were. We should have been learning Mandarin all along.

Or Python