YEC Review

The article "Reconciling the Greenland ice-core and radiocarbon timescales through the Laschamp geomagnetic excursion" by Richard A. Staff et al. (2019) investigates the discrepancy between the Greenland ice-core and radiocarbon timescales for the period around the Laschamp geomagnetic excursion (LGM). The LGM was a brief period, about 41,000 years ago, when the Earth's magnetic field weakened significantly, before returning to its normal strength. This event is recorded in Greenland ice cores as a sharp decrease in the concentration of cosmogenic radionuclides, such as 10Be and 14C. The authors of the article argue that the discrepancy between the two timescales is due to an error in the calibration curve used to convert radiocarbon dates to calendar years. The IntCal13 calibration curve, which is the most commonly used curve, is based on a dataset of tree rings that does not extend back to the LGM. This means that the curve is not able to accurately account

" Over the years, the predictions of general relativity have been tested repeatedly, and it is one of the best-supported theories in the history of science. " -Faulkner General relativity predicts that the universe has been expanding over vast time. This prediction was first made by Alexander Friedmann and Georges Lemaître in the early 1920s, shortly after Einstein published his theory of general relativity. In 1917, Willem de Sitter used Einstein's equations to predict the discovery of an expanding universe. A letter from Albert Einstein to astronomer Willem de Sitter, complaining that the expanding-universe theory implied a moment of creation: “To admit such possibilities seems senseless to me.” Friedmann and Lemaître showed that general relativity predicts that the universe should expand and dilute with time, as a result of the gravitational attraction of all the matter and energy in the universe. This expansion would cause galaxies to drift away from each