English Recordings

What’s your name ?
How are you ?
How old are you ?
Where were you born ?
Where do you live ?
How many brothers ans sisters have you got ?
Have you got any brothers and sisters ?
Where are you from ?
What’s your nationality ?
What are you like ?
What do you like ?

To conclude, it is necessary to assess and harness the potential dangers of robots and superintelligence, but also to focus on their huge potential. Humans and machines should work together to enhance each other’s strengths.

The nuclear reactors used at present in the nuclear power industry produce energy obtained from a neutron-induced fission reaction.
This is a reaction in which an incident neutron enters a heavy target nucleus (fissionable nucleus) to form an unstable compound nucleus.
A nuclear reaction in which an atomic nucleus and one or more neutrons collide and merge to form a heavier nucleus is called neutron capture
The obtained compound nucleus is excited to such a high energy level that the nucleus splits into two large fission fragments.
In the course of this fission, a large amount of energy is released in the form of radiation and fragment kinetic energy.
What is most important, this fission process may produce more than one free neutrons that are capable of inducing further fissions and so on.
This sequence of fission events is known as a nuclear fission chain reaction.
The nuclear fission chain reaction occurs when one single nuclear reaction causes an average of one or more nuclear reactions
The average number of neutrons from one fission that cause another fissions is called the effective neutron multiplication factor
- the reactor state with the effective neutron multiplication factor greater than unity is called a supercritical state;
- the reactor state with the effective neutron multiplication factor equal to unity is called a critical state;
- the reactor state with the effective neutron multiplication factor less than unity is called a subcritical state
The chain reaction can take place only in the proper multiplication environment and only under proper conditions
Obviously, if one neutron causes two further fissions, the number of neutrons in the multiplication system will increase in time, and the reactor power will also increase in time
Moreover, this multiplication environment (the nuclear reactor) behaves like an exponential system. This means that the power increase in time is not linear, but exponential
In order to stabilize such multiplication environment, it is necessary to increase the non-fission neutron absorption in the system (by inserting control rods and, if necessary, increasing the concentration of a liquid absorber)
On the other hand, if one neutron causes less than one further fission, the number of neutrons in the multiplication system will decrease in time, and the reactor power will also decrease in time.
In order to sustain the chain reaction, it is necessary to decrease the non-fission neutron absorption in the system (by withdrawing control rods and, if necessary, decreasing the concentration of a liquid absorber)
The liquid medium used to remove the heat produced by the nuclear fission reaction is called a coolant
There are water cooled reactors and liquid metal cooled reactors
For making the capture of neutrons by heavy nuclei in water cooled reactors more efficient, the neutrons produced by the fission reaction should be slowed down to thermal velocities.
Such neutrons are called slow or thermal neutrons; the process of slowing down their velocity is called moderation, and the medium used to do so is called a moderator.
The water used in water cooled reactors serves both as a coolant and moderator
Liquid metal cooled reactors operate with fast neutrons, and there is no need to moderate them in such reactors

Number 1:
Canada is famous for its:
maple leaf
its national sport hockey on ice
and its national animal the beaver

India in the Ocean Ocean is famous for
its beautiful landmark the Taj Mahal,
its national animal the Bengal Tiger and its rickshaw

New Zealand is popular for
its kiwi the fruit and because it's the New Zealanders nicknames,
it's famous for its Maori culture too and its national sport the rugby with the talented All Blacks

what about South Africa, Jamaica and your island! what are they famous for?

Work your pronunciation

Ergonomics

PART 1: key words and phrases

1. Productivity
...
2; reorganisation
...
3. Fatigue
...
4.Safety
...
5. Muscular-skeleton troubles
...
6. Discomfort
...
7. Efficiency
...
8. Ergonomic tools
...

9. Reorganisation of the working place

...

10. Upgrading of the working place
...

Part 2: verbs:

1.to reduce
...
to maximise
...

to be about

Situation 1:
Teacher please, I really feel bad, I have a stomachache and feel like throwing up and I can’t wait, it’s an emergency, can I go to the nurse ?

Situation 2
Teach, The sun is shining and there is a reflection on the board, I can't see anything…. Can I close the shutters ?

Situation 3
Oh My Gosh!! It stinks in there! Can I open the window please? I can't cope with that horrible smell!

Situation 4
Tom ! What are you doing standing in front of the board! The pupils can't see the board, can you step aside ?

situation 5
Teach the text is too small, I can't read the board! Can you zoom in?

Chocolate cake recipe

Hello guys! Welcome to my cooking channel. Today, I am cooking the perfect chocolate cake.
The ingredients for this recipe are really easy to find. You must have 200 grams of chocolate, 70 grams of flour, 3 eggs, a teaspoon of baking powder, a pinch of salt and vanilla sugar.
My secret ingredient is applesauce to replace the butter and the sugar! So add 100 grams of apple sauce on your grocery list.

For the utensils, you must have two bowls, a spatula, a ladle and a frying-pan.

Here are the instructions:
First, mix the flour, the baking powder, the salt and the vanilla sugar.
At the same time, melt the chocolate in a microwave.
When the chocolate is melting, add the eggs and the applesauce to the mix.
Then, add the chocolate.
When the oven is warming up, put the mix in a cake mold.
Put in the oven for 20 minutes at 180° Celsius.
Enjoy!

I have a big dog named Max, two cats, Luna and Stella and nine goldfish. I don't really know their names, because they all look the same!

The rapid development of robots and Artificial Intelligence over the past decades has led prognosticators to try and fathom the future of this technology. This cover of the ‘New Yorker magazine’ published in 2017 represents robots walking past a man who is begging on the sidewalk with his real dog, highlighting the widespread fear that robots might jeopardize humanity. Is that a realistic vision of the future or a hackneyed apocalypse scenario? In other words, are robots a real threat to humankind? If such fears are grounded in fact indeed, they may also be mitigated.

Amelia is from Liverpool, England. She’s 12 years old. Her family name is Jones. This year she starts year 8 in a new school for her. She loves sports, especially hockey. Every week she plays with her school team. She is also a huge fan of comics.

Nelson Bush is from Los Angeles, Calofornia (USA). He’s 12 years old. His family has Mexican origins, and he loves Mexican food, especially spicy taxos. He can sing and dance very well, and he loves acting. Every year, he wins the talent contest in his school. He wants to be a famous actor one day.

Daniel is from Vancouver, Canada. He is 13 years old. His family name is Clarke. He has Chinese origins. He loves computers and digital arts. He is a member of a film club. Every month they take pictures and make videos about Vancouver.

Zoe Bishop is from New Orleans, Louisiana (USA). She is 13 years old. She plays drums very well. She plays in a jazz band, but never in public. Her favourite time of year is Mardi Gras. Zoe learns French at school and she has a friend in France.