Magnet making Current - Smarter Every Day 16

less than 1m read

·Nov 3, 2024

Hey, it's me, Destin. I'm in Baltimore. [Mascot blows raspberries] [Destin laughs] Thanks. [Music]

So let's say you want to make yourself smarter on electronics, but you're not, uh... You're not really swoofed on that kinda stuff. Oh, looky here, it's the National Electronics Museum. Why don't we go have a look?

John McCarty is here. He's a volunteer at the museum. We have a demonstration for you to show you the relation between current flow and magnetism. So there's a magnet right here, on this side of this tube. We have a coil of wire hooked up to a galvanometer, basically, that's measuring amps. It's set up for DC amps.

So when we twist this, the magnet's gonna fall through the coil and you'll get current flow here. So you can see the current spike. So here's the question: when we turn it the other way, are we going to get positive current or negative current? So that's the question.

So if you think it's gonna be positive - if the needle's gonna go that way, click here. If you think the needle's gonna go that way, click here, and afterwards we'll get Mr. McCarty to explain it, so... Click now. [Music]

Captioning in different languages welcome. Please contact Destin if you can help.

Managing the New York City Power Grid | Breakthrough

The Japanese Have it Figured Out

View All

Discussing Reincarnation in Hinduism | The Story of God

[Music] We think of Hinduism as having reincarnation and life after life after life. But there is really an end to that. That they’re hoping and seeking, which is to go to enlightenment. So once they’ve gone through enough, and I guess learned enough, th…

What Does God Look Like to You? | Brain Games

For many people, God is the strongest belief they have. But how does your brain conceive of the very idea of God? What happens when you actually try to draw the Divine? Dr. Andrew Newberg from Jefferson University Hospital has been trying to figure that o…

Two Bites for the Pin Wheel | Wicked Tuna: Outer Banks

Yo yo, mother load, huh? Mother load! Oh yeah, the tun of God down here is the same tun of God I’ve been praying to up in Gloucester for years and years. I’m just hoping he shines a little light on me and starts putting some paychecks on my deck. We’re i…

Opportunities for high school and college tutors

Hi everyone, Sal Khan here from Khan Academy. Many of you all know about another project, another not-for-profit that I’ve been involved with known as schoolhouse.world, which is all about giving folks free tutoring. We do that by finding amazing voluntee…

These Rare Giraffes Were Killed Just for Their Tails (Exclusive Video) | National Geographic

[Music] Seeing these giraffes from the air was really exciting. Seeing them anywhere is exciting, ‘cause there’s so few of them left. But this was my first shot, and there’s a giraffe standing in this small clearing by a small tree. And then the next thin…

Performing a rotation to match figures

Use one rotation to map quadrilateral ABCD to the other quadrilateral. So to map this one to this one right over here, use a number between 0 and 360° to describe the angle. Counterclockwise is positive, so you’re going to want to move it counterclockwise…

Magnet making Current - Smarter Every Day 16

More Articles