Ancient shell shows days were half-hour shorter 70 million years ago | Earth turned faster at the end of the time of the dinosaurs than it does today, rotating 372 times a year, compared to the current 365, according to a new study of fossil mollusk shells from the late Cretaceous
Not sticking to a regular bedtime and wake schedule, and different amounts of sleep each night, may lead to a higher risk for high cholesterol, hypertension and high blood sugar. Every hour of variability in time to bed and time asleep may be linked to a 27% greater chance of metabolic abnormality.
China’s artificial sun to challenge 200 million degrees Celsius. For comparison; our sun’s core is around 15 mill degrees celsius (27 million degrees Fahrenheit).
The new apparatus can reach an electron temperature of over 200 million degrees Celsius and an ion temperature of 150 million Celsius in its core plasma, according to its developer Southwestern Institute of Physics.
Time lapse footage of neurons making new connection to other neurons, This is what your thoughts look like.
A dye that glows brighter in the presence of calcium ions is loaded into the neurons. Neurotransmitters released by an upstream neuron in a network lead to rapid calcium influx in downstream neurons, seen here as a sudden burst of green. The influx triggers an electrochemical propagation of a signal down the length of the neuron, called the axon, and causes subsequent release of more neurotransmitters, which signals the next neurons in the same network to fire.
Science shows that the Egg came first, not the Chicken. The first egg was laid by a bird that was not a chicken. The first amniotic (hard-shelled) egg laid on land was around 312 million years ago. Chickens are domesticated descendants of Red Junglefowl from (at most) 8000 years ago.
Children’s risk of autism spectrum disorder increases following exposure in the womb to pesticides within 2000 m of their mother’s residence during pregnancy, finds a new population study (n=2,961). Exposure in the first year of life could also increase risks for autism with intellectual disability.
Scientists have grown a miniature brain in a dish with a spinal cord and muscles attached. The lentil-sized grey blob of human brain cells were seen to spontaneously send out tendril-like connections to link up with the spinal cord and muscle tissue. The muscles were then seen to visibly contract.
Physicists “turn back time” by returning the state of a quantum computer a fraction of a second into the past, possibly proving the second law of thermodynamics can be violated. The law is related to the idea of the arrow of time that posits the one-way direction of time: from the past to the future
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