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Video del Museo Galileo

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Conservazione dell'energia meccanica con Phet Colorado

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Conservazione dell'energia meccanica con Phet Colorado

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Eccentricità e orbite (tratto dai libri di matematica di Bergamini, Barozzi, Trifone)

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Dai modelli geocentrici antichi a Galileo

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Argomento che sarà utile ad aprile/maggio.

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Il brano del "Dialogo sopra i due massimi sistemi del mondo" di Galileo in cui si enuncia il principio di relatività galileiano (tratto dal sito Zanichelli.it

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Videolezione del prof. Riccardo Pratesi

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Il peso dell'aria e il vuoto - Museo Galileo

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Questo video è di proprietà del MIUR ed è stato realizzato nel 2012 dal MUSEO GALILEO per INDIRE - ANSAS con i fondi del Progetto PON EDUCAZIONE SCIENTIFICA, codice B-10-FSE-2010-4, cofinanziato dal Fondo Sociale Europeo.

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Splendido esperimento, in inglese, sulla pressione idrostatica e la botte di Pascal spiegata in modo ineccepibile

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Pascal's Blaising Barrel - Exploding Glass Barrel with Water Pressure

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La spada del samurai spiega la pressione

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VIDEO La spada dei samurai PRESSIONE TE LO AVEVO DETTO

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Esprimento del palloncino dentro la bottiglia

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LABORATORIO Pressione 01 ROMENI ZANICHELLI

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Principio dei vasi comunicanti  e torchio idraulico

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Principio dei vasi comunicanti  e torchio idraulico

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Video Zanicheli

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TEORIA I vasi comunicanti RUFFO ZANICHELLI

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TEORIA La legge di Stevin RUFFO ZANICHELLI

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LABORATORIO Pressione 02 ROMENI ZANICHELLI

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Esercizi su energia potenziale, cinetica e meccanica

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Esercizi su energia potenziale, cinetica e meccanica

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Ancora esercizi (e domande di teoria) su questo argomento

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Playlist Zanichelli su LAVORO ed ENERGIA

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Playlist Zanichelli su LAVORO ed ENERGIA

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Dal canale youtube DIDATTICAMENTE

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Sign in now to see your channels and recommendations!

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Multipli e sottomultipli delle unità S.I

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Multipli e sottomultipli delle unità S.I

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http://www.science.unitn.it/~labdid/sisint/si6_prefissi/si_prefissi.html

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Un video (in inglese) sulla conservazione dell'energia meccanica.

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Teaching with style; Mechanical Energy Conservation

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Come si ricava il teorema dell'energia cinetica (o teorema delle forze vive) in un caso semplice

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Lorenzo Baglioni - Il Piano Inclinato feat. Iacopo Melio

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Una videolezione sul lavoro.
Rispetto alle nostre notazioni in questo video si indica il lavoro con la lettera W mentre noi usiamo la lettera L.
Fatte salve queste precisazioni, il video è molto chiaro.

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Esperienza di Cavendish per la misura della costante di gravitazione universale.

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Scopo dell'esperienza è la misura della costante di gravitazione universale G

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Misura del peso di un oggetto in aria e in acqua

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A fondo o a galla (tratto da Amaldi.blu e altri progetti)

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Esperimento sulla lattina e pressione atmosferica

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Uploaded by Zanichelli editore S.p.A. on 2016-01-25.

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Esercizi su energia potenziale, meccanica, conservazione dell'energia e lavoro non conservativo.

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Esercizi su lavoro potenza ed energia cinetica

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Esercizi su lavoro potenza ed energia cinetica

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Scheda su forze conservative, energia potenziale ed energia meccanica

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Scheda sul lavoro fatto dalla forza peso.

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Una scheda di esercizi sul lavoro di forze costanti (tranne l'ultimo in cui la forza è variabile).

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Il lavoro compiuto da una forza variabile

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Il lavoro compiuto da una forza variabile

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Esercizio svolto

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Modello realistico di sistema solare

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Titan

That was about 10 million km (6,213,710 mi) just now.

Pretty empty out here.

Here comes our first planet...

As it turns out, things are pretty far apart.

We'll be coming up on a new planet soon. Sit tight.

Most of space is just space.

Sit back and relax. Jupiter is more than 3 times as far as we just traveled.

When are we gonna be there?

Seriously. When are we gonna be there?

I spy, with my little eye... something black.

If you were on a road trip, driving at 75mi/hr, it would have taken you over 500 years to get here from earth.

Pretty close to Jupiter now.

Sorry. That was a lie before. Now we really are pretty close.

Lots of time to think out here...

Pop the champagne! We just passed 1 billion km.

Most space charts leave out the most significant part - all the space.

We're used to dealing with things at a much smaller scale than this.

We need to reduce things down to something we can see or experience directly in order to understand them.

We're always trying to come up with metaphors for big numbers. Even so, they never seem to work.

Let's try a few metaphors anyway...

You would need of these screens lined up side-by-side to show this whole map at once.

Even though we don't really understand them, a lot can happen within these massive lengths of time and space. A drop of water can carve out a canyon. An amoeba can become a dolphin. A star can collapse on itself.

It's easy to disregard nothingness because there's no thought available to encapsulate it. There's no metaphor that fits because, by definition, once the nothingness becomes tangible, it ceases to exist.

All this emptiness really could drive you nuts. For instance, if you're in a sensory deprivation tank for too long, your brain starts to make things up. You see and hear things that aren't there.

The brain isn't built to handle "empty."

"Sorry, Humanity," says Evolution. "What with all the jaguars trying to eat you, the parasites in your fur, and the never-ending need for a decent steak, I was a little busy. I didn't exactly have time to come up with a way to conceive of vast stretches of nothingness."

Neurologically speaking, we really only deal with matter of a certain size, and energy of a few select wavelengths. For everything else, we have to make up mental models and see if they match up to the tiny shreds of hard evidence that actually feel real.

When you hear people talk about how, "there's more to this universe than our minds can conceive of" it's usually a way to get you to go along with a half-baked plot point about UFOs or super-powers in a sci-fi series that you're watching late at night when you can't get to sleep.

Even when Shakespeare wrote: "There are more things in heaven and earth, Horatio, Than are dreamt of in your philosophy" - he's basically trying to give us a loophole to make the ghost in the story more believable.

But all this empty space, these things of a massive scale, really are more than our minds can conceive of. The maps and metaphors fail to do them justice.

You look at one tiny dot, then you look for the next tiny dot. Everything in between is inconsequential and fairly boring.

Emptiness is actually everywhere. It's something like 99.9999999999999999999958% of the known universe.

Even an atom is mostly empty space.

If the proton of a hydrogen atom was the size of the sun on this map, we would need 11 more of these maps to show the average distance to the electron.

You could safely say the universe is a "whole lotta nothing."

If so much of the universe is made up of emptiness, what does that mean to people like us, living on a tiny speck in the middle of all of it?

With so much emptiness, aren't stars, planets, and people just glitches in an otherwise elegant and uniform nothingness, like pieces of lint on a black sweater?

But without the tiny dots for it to stretch between, there would be no emptiness to measure, and for that matter, no one around to measure it.

You might say that so much emptiness makes the tiny bits of matter that much more meaningful - simply by the fact that, against all odds, they aren't empty. If you're drowning in the middle of the ocean, a floating piece of driftwood is a pretty big deal.

What if trillions of stars and planets were crammed right next to each other? They wouldn't be special at all.

It seems like we are both pathetically insignificant, and miraculously important at the same time.

Whether you more strongly feel the monumental significance of tiny things or the massive void between them depends on who you are, and how your brain chemistry is balanced at a particular moment. We walk around with miniature, emotional versions of the universe inside of us.

It's reassuring to know that no matter how depressingly bleak or ridiculously momentous we feel, the universe, judging by its current structure, seems well aware of both extremes.

The fact that you're here, in the midst of all this nothing, is pretty amazing when you stop and think about it.

Congratulations on making it this far.

This is how fast light travels...

It's the fastest speed allowed by the universe...

Seriously.

If you're in a hurry to get somewhere in space...

you'll need to take it up with Mr. Einstein.

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If the Moon Were Only 1 Pixel - A tediously accurate map of the solar system

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Titan That was about 10 million km (6,213,710 mi) just now. Pretty empty out here. Here comes our first planet... As it turns out, things are pretty far apart. We'll be coming up on a new planet soon. Sit tight. Most of space is just space. Sit back and relax.

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Da Phet Colorado
https://phet.colorado.e
/sims/html/gravity-and-orbits/latest/gravity-and-orbits_en.html

e questa

https://phet.colorado.edu/sims/my-solar-system/my-solar-system_en.html

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Simulazione in Phet Colorado
https://phet.colorado.edu/it/simulation/projectile-motion

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Esercizi su gravità, leggi di Keplero e moto satelliti

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Esercizi su gravità, leggi di Keplero e moto satelliti

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Sito con tutti i satelliti che orbitano attorno alla terra, e i relativi dati orbitali.

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Semplice dimostrazione della formula dell'accelerazione centripeta