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Technology and tranportation (Technology changes our lives (Definition of…
Technology and tranportation
Technology changes our lives
Electricity evolution
It begin whit the introduction of the lightbulb by Thomas Edison
Thomas Edison did not invent the lightbulb, instead it was the firt that adapt it for home use
Thomas Edison lighbulb was an incandesent light
Then Thomas Edison stablished the first power plant for New York
Thomas Edison lightbulb uses vacuum tubes
Then Lee De Forest use vacuum tubes for AM radio
Radio revulzionate the way information reached people and it was the first electronical device used at home
Now we have lots of electronical devices that maintain us conected
Definition of tachnology
Is the invention of new things
Is the inventions of techniques
Is the invention of tools
And in some ways it paralell the human evolution
Technological improovements on health
In this area scientists have been working on the understanding of the human body, and then they have created diferent tools for human health
Vaccines
A vaccine is a medicine that contain a weak form of a disease that people can fight off to get immune to an actual disease
Now we have a vaccine for almost every disase
Vaccines for smallpox
Vaccines for measles
Now scientists are developing vaccines for
Malaria
Actual diseases
Machines
Radiology, whit radiology we can see the inside of human body
In radiology we use X-rays that can show
Bone structure
Broken bones
Problems in the eskeletal sistem
Organs
Brain
Heart
Cardiac scaner, whith images in 5 heartbeats and help to see bloked arteries
Others
CAT scanning
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Soft tissues
Muscles
Others
Babies
Ultrasound X-ray
It show
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MRI is recently more used as it uses harmless radio waves (type of X-ray)
Transportation
Start
First people use animals for traveling
But then people noticed that heavy things move faster whit a big log down
Whith the invention of the wheel humans made new ways of transportation
Chariots originated in mesopotamia around 3000 B.C and they were used in
Rome
Greece
Olympic games (also Greece)
After chariots, coaches apear around 1400s and 1500s and they were used only by rulers and the wealthy
They were still pulled by horses
After a time they became common
There were many types
Stagecoach ( for public use)
In early 1800s Phaetons were built fot speed and racing
Brougham is a coach built for a smooth and confortable ride
But then in 1769 in france Joseph Cugnot make wath he called "automovil"
Characteristics
It prooved to be impractical
The army at the final abandoned it
It was made for war
Later in Britain, in 1801 Richard Trevithick make a smaller steam engine and put it on wheels
Characteristics
It is the first vehicle
It was also impractical
After that Marcus Siegfried built the first gasoline-run car
Characteristics
It was one the first to have succes
It was the firt to use gasoline
The secret of this car was a internal combustion engine
It was made about 1970
It was callled the fist Marcus car
In 1888 Marcus Siergfried improoved his engine and make the second Marcus car
Characteristics
It was more confortable
It had a better engine
Later in Britain the goverment passed a law that said that cars can only go at 6,4 in the country, and in the city 3,4.
this law remained after 1895
Then in 1885 german engineers Daimler and Benz separately make cars
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Boats throught history
Start
Long ago people noticed that some objects travel on water and take a ride, but then start to mprove and make boats
The first boat was adug out boat and it was a big log whit a hole for people, it has two formsof construction
After dugout boats, people add oars and sails
This boats were made in Egypt and Mesopotamia
Then Phyoenicians built long ships whit Cedar wood
Then Romans make special boats for war that have two sets of oars, two decks, sails and special towers at back that hold soldiers for war
Characteristics
They were fast
Thay hold a lot of soldiers
Especialy designed for war
Later European exploration start on 1400s to 1500s
Portuguese caravel
Characteristics
Was built for speed
Used in coasts of Afica
Triangular sails
Galleons
Characteristics
Sometimes used for war
They have 4 square sails
Used in the open sea
From 1500s to 1700s were the great age of pirates
Charcteristics
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In 1800s the steam engine was introduced, but early ships powered by steam engine were only used in rivers
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Characteristics
They were high quality boats
It could hold a lot of cargo
This boats were built around 1000 to 1500 B.C
Characteristics
This boats were faster
This boats were practical
Sails were maid of reeds, that are plants that grow there
It was around 300 B.C