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MASSIVE DISRUPTION. “The Great Oxidation Event (GOE) was a time interval when the Earth's atmosphere and the shallow ocean first experienced a rise in the amount of oxygen. This occurred approximately 2.4–2.0 Ga (billion years ago). The sudden injection of toxic oxygen into an anaerobic biosphere caused the extinction of many existing anaerobic species on Earth. The event is inferred to have constituted a mass extinction.” https://en.m.wikipedia.org/wiki/Great_Oxidation_Event View in LinkedIn

PHOTOELECTRON SPEEDS. “In 1918 a Harvard University researcher, Mang-Fuh Hu in the first XPS paper reported, “some preliminary results in a determination of the maximum emission velocity of the photoelectrons from metals at X-ray frequencies”.” (XPS = X-ray photoelectron spectroscopy). https://lnkd.in/eDZvjevE View in LinkedIn

BROAD BAND ELECTRONS. “Other scientists, including Henry Moseley, Rawlinson and Robinson, independently performed various experiments to sort out the details in the broad bands.” https://lnkd.in/eDZvjevE View in LinkedIn

EXPANDED OBSERVATIONS. “Two years after Einstein's publication, in 1907, P.D. Innes, a PhD student at that time, experimented with a Röntgen tube, Helmholtz coils, a magnetic field hemisphere (an electron kinetic energy analyser), and photographic plates, to record broad bands of emitted electrons as a function of velocity, in effect recording the first XPS spectrum.” (XPS = X-ray photoelectron spectroscopy). https://lnkd.in/eDZvjevE View in LinkedIn

LIGHT + MATTER. “Other phenomena where light affects the movement of electric charges include the photoconductive effect (also known as photoconductivity or photoresistivity), the photovoltaic effect, and the photoelectrochemical effect.” https://lnkd.in/eDZvjevE View in LinkedIn

IMPACT. “Research on the photoelectric effect resulted in important steps in understanding the quantum nature of light and electrons and influenced the formation of the concept of wave–particle duality.” https://lnkd.in/eDZvjevE View in LinkedIn

PHOTOELECTRIC EFFECT. “Emission of conduction electrons from typical metals usually needs a few electron-volts, equivalent to short-wavelength visible or ultraviolet light.” https://lnkd.in/eDZvjevE View in LinkedIn

Palamos shrimp are highly prized in Catalonia and owe their color and taste to a very deep finger of the Mediterranean that upwells nutrients near this fishing town. View in LinkedIn

MAGIC. “Acoustic levitation is “a technique that used mechanical energy of sound to levitate and manipulate materials, has been notably advanced over the past decade (https://lnkd.in/eRHAuxw9), levitating almost any type of materials. Acoustic levitation is also emerging as a strong candidate for creating mixed-reality (MR) interfaces that can seamlessly blend the digital and physical worlds.” https://youtu.be/yrZSp2n-KFw View in LinkedIn

LOCUST AGGREGATION PHEROMONES. “It is now clear that chemical ecology plays an important part in the life of locusts and that a bouquet of various odorants may act at different times during their development and adult maturation and, therefore, may have different effects at different times. females preferentially mate with males emitting a high concentration of the volatiles phenylethyl alcohol (PEA) and (Z)-3-nonen-1-ol (3-NOL) and this also affected successful hatching of their larvae. Recently, a careful study of Guo et al. (2020) identified 4-vinylanisole or 4-methoxystyrene as an aggregation pheromone in Locusta migratoria.” https://lnkd.in/eDTzyGJT View in LinkedIn