2 citations · 4 across the 7 of their papers we have counts for
7 papers
The Pseudo Radiation Energy Amplifier (PREA) and the mean earth s ground temperature
Ahmed Boucenna
From the radiation balance diagram illustrating the IPCC reports one can estimate the power received by Earth from the sun at Pin = 342 W/m2 and the power consumed, remitted and re…
The Great Season Climatic Oscillation and the Global Warming
Ahmed Boucenna
The present earth warming up is often explained by the atmosphere gas greenhouse effect. This explanation is in contradiction with the thermodynamics second law. The warming up by…
Origin of the numerals, Zero concept
Ahmed Boucenna
The partisans of the hypothesis of the Indian origin of the numerals create confusion between the history of the Indian mathematics and the history of our modern numerals. To argue…
Origin of the numerals, Al biruni testimony
Ahmed Boucenna
The origin of the numerals that we inherited from the arabo-Islamic civilization remained one enigma. The hypothesis of the Indian origin remained, with controversies, without seri…
The Great Season Climatic Oscillation
Ahmed Boucenna
The variations of water density and thermal conductivity of the oceans cold region waters according to their salinity lead to suggest an hypothesis of an oscillating climate betwee…
Origin of the numerals
Ahmed Boucenna
Through the pagination of an Arabian Algerian manuscript of the beginning of the 19th century, we rediscover the original shape, the "Ghubari" shape, of the numerals. Contrary to s…