Tot es mou tv3
All “Tot es mou” TV programs with Pere Renom.
The price of the rose
The wild rose is a plant very resistant to diseases and adapted to the temperature and precipitation conditions of the middle mountain. Garden roses, on the other hand, have been selected by hybridization to ensure that they multiply the number of petals, that they have all kinds of colors and produce delicious fragrances, but they […]
The spontaneity of crystals
A crystal is a solid with its atoms, molecules or ions arranged in a very ordered microscopic structure, forming a three-dimensional network. The science that studies crystals is crystallography, and allows us to know their chemical and physical properties. One of the most common crystals that we find in nature is the snowflake. Each one […]
Hatching from eggs
On Easter Monday, it is a tradition that the godparents give a cake (“mona”) to their godchildren. There are many different varieties of cakes, such as roscón, sponge cake, chocolate cake… but they all have eggs on top. Why do we incorporate eggs into this celebration? There are two hypotheses: between the ancient Egyptians and […]
Masked
The use of the mask to deal with the coronavirus epidemic is a highly controversial topic. There are specialists who recommend it at all times, and others, who consider it necessary only in certain circumstances. This controversy arises basically because there are many uncertainties regarding the direct transmission of the virus. It is not known […]
Coronavirus arms race
Ecologists often speak of the Red Queen hypothesis, as a metaphor for describing certain evolutionary dynamics. The expression was extracted from Lewis Carroll’s novel, “Alice through the Looking Glass“, where Alice visits the country of the Red Queen, and discovers that you have to run there not to move around. This dynamics has been detected […]
Breathe despite coronavirus
These days we are seeing that unfortunately the death toll from coronavirus continues to grow. In Spain alone until today, March 26, 2020, there have been more than 4,100 victims, overtaking China, where the epidemic was declared. How does the coronavirus kill? It has been said several times that it infects the airways and generally […]
Chasing after the vaccine
The infectious diseases that more people have killed throughout history are the black plague, caused by a bacterium (Yersinia pestis) and smallpox, caused by a virus (Variola major). Smallpox is believed to have emerged in the Neolithic revolution about 10,000 years ago. Evidence has been found in Egyptian mummies from the 3rd century BC. Over […]
Utility of social distancing
Despite teleworking, social distancing due to the coronavirus epidemic gives us the possibility of having more free time, and we can us it to play board games. Games also serve to explain metaphorically the usefulness of social distancing. The key parameter to assess the infectious capacity of the virus is called R0 (transmission rate or […]
Exponential contagion?
In recent weeks (February-March 2020) we are seeing the coronavirus epidemic spread in many western countries, both in Europe and in North America. The trend is very similar to what was seen in China a couple of months ago. At this point the cases grow exponentially. To understand what it means exponentially we can observe […]
Maria Sibylla Merian, the first entomologist
Maria Sibylla Merian was a German entomologist from the 18th century. She published several profusely illustrated works where she described the biological cycle of some 200 species of insects and amphibians. She founded the first academy of scientific illustration exclusively for women. And she traveled to Suriname (South America), then a Dutch colony, to study […]
