Do We Really Need a Battery | Physics

Hey friends! Ever wondered, what drives the current in an electrical circuit? What’s the role of a battery we get at the electrical stores. For those of you, who are really fascinated by gadgets, electrical appliances, in this video we find out that do we really need a battery in a circuit. Let’s have a

Forms of Energy: Kinetic, Thermal, & Potential (RP12)

Now we’re ready to use the physics definition of WORK to develop ideas about — and formulas for — some important FORMS of energy. By “forms of energy,” I don’t mean anything anthropocentric (like enthusiasm, or spirit). And I don’t mean anything BIOcentric (like a mysterious life energy, or the Chinese Qi). It turns out

Physics ðŸ”Œ Electricity | Electric Potential & Potential Difference Part 3 Class 10 | In Hindi

Hello friends welcome to the education wave success made easy electricity part 3 in today’s video we will talk about electric potential and in previous video, we talk about electric circuit what is electric circuit and and what is electric current and some numerical also cover if you want to watch previous video you can

New perspective on the heart | Circulatory system physiology | NCLEX-RN | Khan Academy

So we’ve gotten kind of used to drawing the heart with four chambers. I’m going to draw it with four chambers here, something like this, with two chambers on top. Those are the atria. And then I’m going to draw some slightly larger chambers down below. These are the ventricles. And just to label it,

Membrane potentials – part 2 | Circulatory system physiology | NCLEX-RN | Khan Academy

So in the last video we talked about how you have a higher concentration of potassium on the inside– around 150 millimoles per liter –than you do on the outside– let’s say around five millimoles per liter. Just to recap some important points we brought up, we said that essentially what happens is that you

Lec 1 | MIT 18.085 Computational Science and Engineering I, Fall 2008

The following content is provided under a Creative Commons license. Your support will help MIT OpenCourseWare continue to offer high quality educational resources for free. To make a donation or to view additional materials from hundreds of MIT courses, visit MIT OpenCourseWare at ocw.mit.edu. PROFESSOR STRANG: Just to give an overview in three lines: the

Neuron action potential mechanism | Nervous system physiology | NCLEX-RN | Khan Academy

In this video, I want to talk about how action potentials are generated the trigger zone and how they’re conducted down the axon. So I’ve drawn a soma here in red and one axon in green. And I’ve blown up the axon to a very large size just so I had some room to draw.

The real relationship between your age and your chance of success | Albert-LÃ¡szlÃ³ BarabÃ¡si

Today, actually, is a very special day for me, because it is my birthday. (Applause) And so, thanks to all of you for joining the party. (Laughter) But every time you throw a party, there’s someone there to spoil it. Right? (Laughter) And I’m a physicist, and this time I brought another physicist along to