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1492
5 inventions with their dates of invention, from the Modern Age
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1492
Timeline of the 5 inventions
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1492
Modern Age
It is the third of the historical periods in which universal history is conventionally divided, between tthe fifteenth and eighteenth centuries. -
First Invention: The Compound Microscope
The idea arose from an experiment in which magnifying lenses were introduced into a tube and they discovered that objects were observed in a better way.
Advantges: Better perception of the image, more comfortable observation and details are perceived with greater clarity.
Disadvantages: Very deep investigations cannot be carried out due to the low resolutions of the lenses, the visible light wave imposes limitations and is very heavy. -
Third invention: The thermometer
The physicist Fahrenheit was the one who invented the first modern thermometer.
Fahrenheit invented the spirit thermometer in 1709 and the mercury thermometer in 1714.
Advantages: Easy to use, great lightness and speed of measurement.
Disadvantages: It can fail, it can break and if it is made of mercury it is dangerous if it breaks. -
Fourth invention: The steam engine
The steam engine allowed the transport of goods and people, apart from allowing the development of engines in factories of dimensions and powers.
The inventor was: Heron of Alexandria, nicknamed "The Magician".
Advantages: Useful for moving machinery in factories, lower investment cost and lower environmental risk in case of leaks.
Disadvantages: Pollution, requires more complex control systems and needs more robust pipes and elements for the solar field. -
Fifth Invention: The Modern Refrigeration System
Guillermo Cullen managed to develop the first known method of artificial refrigeration by letting ether ethyl boil under partial vacuum.
Advantages: Excellent temperature regulation, homogeneous cooling and quieter motor.
Disadvantages: Greater motor weight, greater complexity and higher cost. -
Second invention: The lightning rod
It is an instrument whose objective is to attract an ionized ray from the air to conduct the discharge towards the ground.
Advantages: It prevents serious electrical accidents in a building, protects electrical devices from surges and reduces the intensity of lightning by redirecting its current.
Disadvantages: Noise due to the rotation of the motor, high costs and complexity in maintenance. -
Report on how these inventions improved society
The compound microscope: It has contributed to the study of diseases and to visualizing individual molecules within living cells.
The thermometer: To see the temperature of the house, food, etc.
The steam engine: For transportation and to develop trains, ships, etc.
The modern refrigeration system: To create refrigerators, so that bacteria do not grow in the food, etc.
The lightning rod: Protect household appliances and electrical devices from surges.