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Take a look at the new mass transit vehicle South Korea is developing.


A hyper-tube train currently in development in South Korea reached a record speed of more than 621mph during testing on Wednesday, hitting speeds normally only seen by airplanes.

The Korean Railroad Research Institute (KRRI) announced the major milestone on Wednesday, claiming the train may have gone as fast as 633mph. The hyper-tube system has been in development since 2017, and had previously managed a top speed of 443mph. For comparison, Japanese Shinkansen trains top out at a maximum operating speed of 200mph, with commercial aircraft cruising at speeds between 497mph and 621mph.

KRRI.

https://media.blubrry.com/drjohnday/p/drjohnday.com/podcasts/Podcast217.mp3 Podcast: Play in new window | DownloadSubscribe: Apple Podcasts | Android | RSS6 Foods to Reverse Aging with Lithium Could a microscopic dose of the psychoactive drug lithium, which occurs naturally in mineral water and certain foods, actually be the secret to less heart disease, better moods, and a longer life? In this article, I share how eating six foods may reverse aging with lithium.

The UN population forecast predicts that by 2050 there will be almost 10 billion people on the planet. They’ll live mostly in cities and have an older median age than the current global population. One looming questions is, what will they eat?

The Green Revolution of the 1960s used selective breeding to double crop yields of rice and wheat in some areas of the world, rescuing millions of people from food shortages and even famine. Now, the fast-growing global population combined with the impact of climate change on our ability to produce food—increased droughts and extreme weather events many crops can’t withstand—points to the need for another green revolution.

Luckily there’s already one underway. It’s more decentralized than the last, which makes sense given there are different challenges surfacing in different parts of the world. A Norwegian startup called Desert Control has a running start on solving a problem that’s only likely to get worse with time.

Mennonite pastors in Belize and in other nations are also pushing back against worldwide lock-down regulations in an effort to be allowed to continue to worship…


The Mennonite pastor said, “The calling of God is higher than the calling of this government.” He said his church will meet again next Sunday, with permission or not.

Careful, you may end up with mini cyborgs!


“The closer we come to his goal, the more likely we will get a brain that is capable of sentience and of feeling pain, agony and distress,” Christof Koch, chief scientist and president of the Allen Brain Institute, told the NYT.

The human brain is so complex that scientists are still guessing at many aspects of how it works. That’s the appeal of mini-brains — they’re comparatively simple balls of neurons that simulate some characteristics of full brains but which barely scratch the surface of their capabilities. But this new study, published Thursday in the journal Cell, suggests that the mini-brains could be more complex than previously believed.

“There are some of my colleagues who say, ‘No, these things will never be conscious,’” Muotri told the NYT. “Now I’m not so sure.”

Summary: Astrocytes are involved in regulating inhibitory synapses by binding to neurons through the NrCAM adhesion molecule.

Source: Duke University

In the orchestra of the brain, the firing of each neuron is controlled by two notes–excitatory and inhibitory– that come from two distinct forms of a cellular structure called synapses. Synapses are essentially the connections between neurons, transmitting information from one cell to the other. The synaptic harmonies come together to create the most exquisite music–at least most of the time.