Category Archives: Physics

Atoms and particles – pour aider à comprendre

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Atoms and particles are the basis to science understanding. It’s really important for everyone to have a good understanding of this to progress. I suggest you try watching these videos prepared by very different teachers. Some will switch you on, certains vous énerveront; c’est pourquoi il y a diverses façons d’expliquer la même chose.

INTRO by MINUTE PHYSICS – a brilliant teacher.

INTRO TO ATOMIC THEORY

INTRO: THE ATOM

L’atome selon clipedia sorti en 2016

MASS WAVES:

NEUTRINOS:

SINGING COMPLICATION: IS IT ANY EASIER?

WANT TO HAVE AN INTRO TO DARK MATTER?

From the PHD site: the Higg’s boson explained:

and also

So where does our mass come from?

PARTICLE PHYSICS EXPLAINED FROM START TO FINISH:


Clocks and Time

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Time is weird, and clocks are all around us because of our relationship to time, calendars, that allow social meetings.

Today we got a historical gem on YouTube: the history of Big Ben. Many many men (women seem not to exist) have been involved in this UK project: all for a tower, a broken bell, and zillions of photographs taken by tourists ….. of a CLOCK.

Big ben had to send exact time to Greenwich. Why? Because of the Oº meridian and counting time zones from that line, but?

It sounds like “time” is much more complicated than “telling time” on your watch.

But what is time? Why is there a yesterday, a now and a tomorrow?
The channel Minute Physics tries to explain:

Time in relation to the 2nd law of thermo dynamics:

Or Ted-Ed gives another look:

And if you want to dig deeper: here’s the discovery channel take on time as it is seen and understood today. At this time, we are far from the Big Ben saga. Take a deep breath before diving into these new concepts!

Which brings us back to time for the individual born one day, dead another. Should we take care of the time given to us? Should we take care of our planet to give time to others? Should we give birth to other humans so that they too can have a life time? Should we allow ourselves to waste time if such a thing exists? Are these considerations important?