One specific scenario, Dvali-Gabadadze-Porrati (DGP) gravity, gives rise to a potentially observable anomaly in the solar system: all planets would exhibit a common anomalous precession, dw/dt, in excess of the prediction of General Relativity. We......
alsotheorbitalperiodPbandthemeanmotionnofatestparticlearemodifiedbytheDvali-Gabadadze-Porratigravity.WhilethecorrectiontoPbdependsonthemassofthecentralbodyandonthegeometricalfeaturesoftheorbitalmotionaroundit,thecorrectiontonisindependentofthem,uptotermsofsecondorderintheeccentricitye.Thelatteroneamountstoabout2×...
Discovered more than a century ago, Alzheimer’s disease (AD) is not only still present in our societies but has also become the most common dementia, with 50 million people worldwide affected by the disease. This number is expected to double in the next generation, and no cure is currentl...
How long it takes to get to Mars depends on the planetary position and available technology. Here we explore how long a trip to the Red Planet would take.
TheLeo constellationcan be seen at latitudes between 90 and minus 65 degrees. To find Leo, first look for the bright star Regulus and then trace the distinctive backward question mark known as "The sickle" which represents the lion's mane. ...
Modified X-ray procedures can be used to examine softer tissue, such as the lungs, blood vessels or the intestines. In this article, we'll find out exactly how X-rays machines pull off this incredible trick. As it turns out, the basic process is really very simple. Contents What's an...
third shell of an atom, which consists of nine suborbitals, can hold a maximum of 18 electrons, according toFlorida State University's Department of Chemistry and Biochemistry. That means selenium has 2, 8, 18 and 6 electrons in its first, second, third and fourth atomic orbital, ...
Gamma rays can kill living cells, and medical professionals sometimes use them to destroy cancerous cells. In deep space, gamma ray bursts occur daily, but their origins are still a mystery. Read on to find out the difference between non-ionizing and ionizing radiation. X-ray Shoe Fitter ...
it dims the starlight. This is reflected in the light curve as a regularly recurring drop in brightness. Precise evaluations of such curves provide information about the size and orbital period of the planet. Researchers can also obtain information about the composition of the planet’s atmosphere...
Earth-bound researchers and scientists analyze the results and conduct their own experiments, thinking up new theories and possible solutions to test. Before we look into the progress the experts have made in space farming, let's delve a little deeper into the obstacles they face. History of ...