school energy&environment
Bacteria
Bacteria are unicellular organisms, in other words they are made of a single cell. Bacteria were the first organisms that lived on the Earth. They appeared 3 billion years ago in the waters of the first oceans. Bacteria or prokaryotes are the most widespread living beings in the Earth: in a spoonful of soil, for example, it is possible to find up to 10,000 billion bacteria. Their size is extremely small, in fact most bacteria cells have a diameter that ranges from 1 to 10 microns (one micron is equivalent to one thousandth of a millimetre): a line of one thousand neatly arranged bacteria, would be only one millimetre long.
subjects dealt with in Bacteria
Bacteria knowledge
Bacteria or prokaryotes are the most common living beings on Earth: one spoonful of soil can contain, for instance, up…
Man and bacteria
The first scientist to have studied and described bacteria was Anton van Leeuwenhoek (1632-1723). He was a textile dealer who…
Environment
A group of American scientists have succeeded to create some genetically modified organisms that can produce oil. The most popular…
Protection of water and soil
Pseudomonas are aerobic, rod-shaped bacteria. They can use over one hundred organic compounds as a source of energy and carbon.…
special reports
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18 December 2021 / Life
The Christmas Star Tradition
A plant that symbolises the Christmas season, decorating homes and shops and featured prominently by the florists and garden centres…
15 September 2021 / Life
Can you be intelligent without a brain?
Can you be intelligent without a brain? The answer is "in a certain sense, yes" and this is demonstrated by…
26 July 2021 / Life
Japanese beetles and other alien species
There is a beetle that has been invading the Italian countryside and cities for some time now, a small insect…
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16 June 2021 / Life
A turtle's life
World Sea Turtle Day is held on 16 June. First established in 2008, the day is now supported by Sea…
10 June 2021 / Life
The world below
Journey to the Centre of the Earth is a famous science fiction novel written by the great Jules Verne in…
29 April 2021 / Life
Etruscan shrews, ferocity in miniature
Which is the tiniest micromammal, i.e. the smallest mammal on the planet? Up until almost half a century ago, it…
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10 March 2021 / Life
International Year of Fruits and Vegetables 2021
This year has been designated by FAO (Food and Agriculture Organisation of the United Nations) as the International Year of…
8 March 2021 / Life
8 March. We remember Rosalind Franklin, the great female DNA scientist.
DNA was first isolated by Friedrich Miescher, a Swiss biochemist in 1869. It was a brilliant, but not complicated operation:…
27 February 2021 / Life
In search of the riders of icebergs
International Polar Bear Day, set up by Polar Bears International, a non-profit organisation, was held on 27 February. The aim…
-
18 December 2021 / Life
The Christmas Star Tradition
A plant that symbolises the Christmas season, decorating homes and shops and featured prominently by the florists and garden centres…
15 September 2021 / Life
Can you be intelligent without a brain?
Can you be intelligent without a brain? The answer is "in a certain sense, yes" and this is demonstrated by…
-
26 July 2021 / Life
Japanese beetles and other alien species
There is a beetle that has been invading the Italian countryside and cities for some time now, a small insect…
16 June 2021 / Life
A turtle's life
World Sea Turtle Day is held on 16 June. First established in 2008, the day is now supported by Sea…
-
10 June 2021 / Life
The world below
Journey to the Centre of the Earth is a famous science fiction novel written by the great Jules Verne in…
29 April 2021 / Life
Etruscan shrews, ferocity in miniature
Which is the tiniest micromammal, i.e. the smallest mammal on the planet? Up until almost half a century ago, it…
-
10 March 2021 / Life
International Year of Fruits and Vegetables 2021
This year has been designated by FAO (Food and Agriculture Organisation of the United Nations) as the International Year of…
8 March 2021 / Life
8 March. We remember Rosalind Franklin, the great female DNA scientist.
DNA was first isolated by Friedrich Miescher, a Swiss biochemist in 1869. It was a brilliant, but not complicated operation:…
-
27 February 2021 / Life
In search of the riders of icebergs
International Polar Bear Day, set up by Polar Bears International, a non-profit organisation, was held on 27 February. The aim…
-
18 December 2021 / Life
The Christmas Star Tradition
A plant that symbolises the Christmas season, decorating homes and shops and featured prominently by the florists and garden centres…
-
15 September 2021 / Life
Can you be intelligent without a brain?
Can you be intelligent without a brain? The answer is "in a certain sense, yes" and this is demonstrated by…
-
26 July 2021 / Life
Japanese beetles and other alien species
There is a beetle that has been invading the Italian countryside and cities for some time now, a small insect…
-
16 June 2021 / Life
A turtle's life
World Sea Turtle Day is held on 16 June. First established in 2008, the day is now supported by Sea…
-
10 June 2021 / Life
The world below
Journey to the Centre of the Earth is a famous science fiction novel written by the great Jules Verne in…
-
29 April 2021 / Life
Etruscan shrews, ferocity in miniature
Which is the tiniest micromammal, i.e. the smallest mammal on the planet? Up until almost half a century ago, it…
-
10 March 2021 / Life
International Year of Fruits and Vegetables 2021
This year has been designated by FAO (Food and Agriculture Organisation of the United Nations) as the International Year of…
-
8 March 2021 / Life
8 March. We remember Rosalind Franklin, the great female DNA scientist.
DNA was first isolated by Friedrich Miescher, a Swiss biochemist in 1869. It was a brilliant, but not complicated operation:…
-
27 February 2021 / Life
In search of the riders of icebergs
International Polar Bear Day, set up by Polar Bears International, a non-profit organisation, was held on 27 February. The aim…
from the Multimedia section
curiosities
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The thousand uses of lichens
Throughout history, humans have used lichens for a variety of purposes. The oldest evidence of lichen use dates back to…
Unusual vegetables
Distributed at all latitudes, lichens are able to conquer extreme biotopes, adapting to living in places where plants would find…
Watch out for aliens!
Italy has some new inhabitants, but that is no cause for celebration: the list of alien species is long. Two…
-
Plants and bacteria giving new "light" to off grid communities
"Planta lampara", a lamp powered by the energy produced thanks to the combination of plants and bacteria...
-
The thousand uses of lichens
Throughout history, humans have used lichens for a variety of purposes. The oldest evidence of lichen use dates back to…
Unusual vegetables
Distributed at all latitudes, lichens are able to conquer extreme biotopes, adapting to living in places where plants would find…
-
Watch out for aliens!
Italy has some new inhabitants, but that is no cause for celebration: the list of alien species is long. Two…
Plants and bacteria giving new "light" to off grid communities
"Planta lampara", a lamp powered by the energy produced thanks to the combination of plants and bacteria...
-
The thousand uses of lichens
Throughout history, humans have used lichens for a variety of purposes. The oldest evidence of lichen use dates back to…
-
Unusual vegetables
Distributed at all latitudes, lichens are able to conquer extreme biotopes, adapting to living in places where plants would find…
-
Watch out for aliens!
Italy has some new inhabitants, but that is no cause for celebration: the list of alien species is long. Two…
-
Plants and bacteria giving new "light" to off grid communities
"Planta lampara", a lamp powered by the energy produced thanks to the combination of plants and bacteria...