Adult Professionals. Mechanics, Part 3

7th February 2020

Contents

Architecture: Arabia / The Middle East // Chicago Willis Tower

The Concorde

Entropy

Friction

Famous scientists: Nikola Tesla

Project: make a presentation about your favourite scientist.

Architecture

Arabia / The Middle East

Burj Khalifa

Work in pairs: https://www.365tickets.com.au/burj-khalifa-dubai

Tell me about the Burj Khalifa – the facts; what you can see and do, and practical information

Prepare an information sheet for a guest – be careful to read the website carefully.

Chicago

TowerByNumbers

The Willis Tower: Why doesn’t it fall over ?

https://www.youtube.com/watch?v=KjhM7Z5YPGg

Image result for willis tower

The Concorde

Image result for concorde

What do you know about this commercial supersonic plane ?

This video is quite long (10 minutes+) but has lots of engineering terms and everyday expressions.

Fortunately, it also utilises subtitles which seem quite accurate: https://www.youtube.com/watch?v=a_wuykzfFzE

Write down any words you don’t know – watch the video in short stages, then you can watch at home at your leisure.

The Concorde stopped: why ? What reasons can you suggest ?

Science: Entropy

Image result for entropy for kids

Entropy: https://www.youtube.com/watch?v=YM-uykVfq_E

The video contains some good expressions.

Famous Scientists

If I say ‘Tesla’, what do you think of ?

Image result for nikola tesla

https://www.youtube.com/watch?v=ty1Fk0JZfQk

Project:

Make a presentation about your favourite scientist or science writer.

Feel free to use slides, pictures, diagrams.

Image result for famous scientists

Shinkansen

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Bullet Train – top ten facts: https://www.youtube.com/watch?v=b4CD1vErEQQ

This is as much as listening exercise, as an engineering one. How much can you understand ?Which presenter is easier to understand, the young lady or the man from USA ?

Engineering terms

Match the term to the definition:

friction: the product of a body’s mass and its velocity

compression: not of natural origin; prepared or made artificially

momentum: the resistance when a body is moved in contact with another

synthetic: an increase in the density of something

What is ‘friction’ ?

Friction: https://www.youtube.com/watch?v=x_24FBNa788&index=4&list=PL3qtH4RtP-D1xazLKdUeN7QExjbeuCH1n

Listen out for ‘thus’ / exert a force / kinetic (UK pronunciation) / 

Rephrase (put it in your own words):

  • what is friction ? 
  • How is it caused ? 
  • What types of friction are there ? 
  • What are the three types of dynamic friction
Image result for friction

Adult Professionals: Mechanics, Part 2

23rd January 2020

Various exercises and features aimed at science professionals, mechanics and engineers.

Contents

Engineering fails

Heat transfer

The internal combustion engine

Reading exercises: condensing text, looking for relevant information.

Turbulence

Engineering fails

Engineering fails – bad engineering decisions and designs: https://www.youtube.com/watch?v=qPhVZExcGXg

Image result for bad engineering
Image result for bad engineering

Heat transfer

These are three methods of heat transfer.

Explain what is happening in each case (situation).

What method is used by:

The sun

An air-conditioner / radiator

Heating water in a can by fire.

The internal combustion engine

Image result for internal combustion engine

How does a car engine work ? Watch this video and then explain: https://www.youtube.com/watch?v=DKF5dKo_r_Y

Vocabulary / jargon / engineering terms:

crankshaft piston / piston rods / valves / cam shaft / timing belt

tension pulley / idler pulley / momentum

What does four stroke mean ? What does crank to camshaft ratio mean ?

What are spark plugs used for ? What stops the crankshaft stopping ?

How is this different from a diesel engine ?

Starting an old car

From ‘Top Gear’: https://www.youtube.com/watch?v=rWTcPdYfsAc

Why is it hard to start these early cars ? Where was this car made ?

New vocabulary: 

particular / original / hill-start / rapidly / brutality / you what ? 

Image result for earliest car

Firstly, a look at some vintage cars:

According to the National Motor Museum, Beaulieu, United Kingdom, the definition for each category is the following:

Veteran– officially a car made up to and including December 1918.

Vintage– officially a car made between 1919 and 1930. Although, the term is often used to describe any car made before World War II.

Classic– generally any car that is no longer in production that is still popular. For classic car events organised by the Motor Sports Association (MSA) eligibility is set at 20 years. Generally this term is applied to cars from the 1940s, 1950s, 1960s and 1970s. However, no definition is universal.

Turbulence

When I flew from London to Sai Gon, I experienced light turbulence: https://www.cbc.ca/news/technology/turbulence-air-travel-1.3385566

There is some great new vocabulary in this article, as well as expressions and collocations (‘potentially dangerous’ / ‘do their best’).

What are the causes ? Can turbulence be predicted ? How do air-traffic controllers gather information ? 

Reading exercise

Selecting important information

We want to condensethis article so we only need the main facts:

This is about the British engineer Isabard Kingdom Brunel

Image result for i k brunel

Isambard Kingdom BrunelFRS(/ˈɪzəmbɑːrd bruːˈnɛl/; 9 April 1806– 15 September 1859), was an English mechanical and civil engineerwho is considered “one of the most ingenious and prolific figures in engineering history”,”one of the 19th-century engineering giants”,and “one of the greatest figures of the Industrial Revolution, [who] changed the face of the English landscape with his groundbreaking designs and ingenious constructions”.Brunel built dockyards, the Great Western Railway, a series of steamships including the first propeller-driven transatlantic steamship, and numerous important bridges and tunnels. His designs revolutionised public transport and modern engineering.

Though Brunel’s projects were not always successful, they often contained innovative solutions to long-standing engineering problems. During his career, Brunel achieved many engineering firsts, including assisting in the building of the first tunnel under a navigable river and development of SS Great Britain, the first propeller-driven, ocean-going, iron ship, which, when built in 1843, was the largest ship ever built.

Isambard Kingdom Brunel (1806-1859), was an English engineer who is regarded as a major figure in engineering history. His designs, which were considered ground-breaking and ingenious, included bridges and tunnels, railways and ships.

Despite some engineering fails, he was an innovator and achieved many firsts in enginnering. His ship, the SS Great Britain (1843), was the largest ship of its time.

Now, your turn:

Landmark 81

How to look for important information. Read this Wikipedia entry and re-write in just 3 or 4 sentences, inclusing only the most important information.

Landmark 81 is a super-tall skyscraper in Ho Chi Minh CityVietnam, that was designed by the British design, engineering and consulting firm Atkins.The investor and primary developer for the project is Vingroup, a Vietnamese corporation that is also the country’s largest real-estate company. Landmark 81 is the tallest building in Vietnamthe tallest completed building in Southeast Asia as of July, 2018 and the 14th tallest building in the world.

The 461.5 metres (1,514 ft) tall, 81-storey building is built on the western banks of the Saigon River in the city’s Binh Thanh District, located just north of Ho Chi Minh City’s historic center and to the immediate south of Saigon Bridge. The tower is at the heart of the $1.5 billion high-end mixed-use urban area called Vinhomes Central Park, and was scheduled to be inaugurated in July 2018. The development comprises hotel and conference facilities, luxury apartments, high-end retail spaces, restaurants, bars, and a multi-story observation deck at the tower’s crown.

Image result for landmark 81