All known living organisms have their genetic information encoded in a molecule called deoxyribonucleic acid or DNA. Genetic information is encoded as a sequence of four nucleotides: guanine (G), adenine (A), thymine (T), and cytosine… Read More »Chromosomes – Sci-advent – Day 23
Element 22 was named after the Titans – sons of the Earth – in Greek mythology. Titanium was discovered by William Gregor in 1791 in Cornwall, England and it is the ninth most abundant element… Read More »Element 22: Titanium – Sci-advent – Day 22
We have seen how light could be described in terms of a wave, as demonstrated by the double-slit experiment. Nonetheless, that is not the whole story. For instance, in 1888, Wilhelm Hallwachs describes an experiment using a… Read More »Photoelectric Effect – Sci-advent – Day 21
Los Mayas son una de las más grandes civilizaciones humanas. No sólo tienen una excelente agricultura, cerámica y la escritura jeroglífica, pero también tienen obras arquitectónicas impresionantes y arte simbólico, así como matemáticas, astronomía y… Read More »Sistema Numeral y Calendario Maya
The Mayas are one of greatest human civilisations. Not only did they have excellent agriculture, pottery and hieroglyph writing, but also have some of the most impressive architecture and symbolic art as well as mathematics, astronomy… Read More »Mayan Numeral System and Calendar – Sci-advent – Day 20
The double-slit experiment is one of the most famous experiments in physics and one with great implications in our understanding of Nature. Although the experiment was realised originally with light, it can be done… Read More »Double Slit Experiment – Sci-advent – Day 19
We are well acquainted with some optical phenomena such as reflection an refraction; simply take a look at an object half-submerged in a glass of water. But light has other (many other) trick under its… Read More »Total Internal Reflection – Sci-advent – Day 18
