Forget science fiction — Silicon Valley start-up Light Field Lab has created a hologram so real that I could put my hand right through it.
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“Move fast and break things” doesn’t exactly translate into Mandarin.
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Silicon Valley: History’s Greatest ‘Ponzi Scheme’ (Mini-Documentary) by Jake Tran.
➡️ https://youtu.be/zU5JsP6pUpc.
Continue reading “Why Silicon Valley and Shenzhen Have Exactly The Opposite Problem” »
The historic mission is still going strong.
A Chinese lander and rover are still up and running more than 1,000 Earth days after they made a historic first-ever landing on the far side of the moon.
The Chang’e 4 lander carrying the Yutu 2 rover touched down in Von Kármán Crater on Jan. 2 2019, and the robotic mission has been exploring the unique area of our celestial neighbor ever since.
The mind is a powerful thing – it can generate both symptoms of illness and symptoms of healing. Here’s what this could tell us about consciousness.
Neural circuits underlying brain functions are vulnerable to damage, including ischemic injury, leading to neuronal loss and gliosis. Recent technology of direct conversion of endogenous astrocytes into neurons in situ can simultaneously replenish the neuronal population and reverse the glial scar. However, whether these newly reprogrammed neurons undergo normal development, integrate into the existing neuronal circuit, and acquire functional properties specific for this circuit is not known. We investigated the effect of NeuroD1-mediated in vivo direct reprogramming on visual cortical circuit integration and functional recovery in a mouse model of ischemic injury. After performing electrophysiological extracellular recordings and two-photon calcium imaging of reprogrammed cells in vivo and mapping the synaptic connections formed onto these cells ex vivo, we discovered that NeuroD1 reprogrammed neurons were integrated into the cortical microcircuit and acquired direct visual responses. Furthermore, following visual experience, the reprogrammed neurons demonstrated maturation of orientation selectivity and functional connectivity. Our results show that NeuroD1-reprogrammed neurons can successfully develop and integrate into the visual cortical circuit leading to vision recovery after ischemic injury.
Functional circuit impairment associated with neuronal loss is commonly seen in patients with brain injuries, such as ischemia. Though neural stem cells (NSCs) exist in the subventricular zone (SVZ) in the adult brain, they are found to differentiate mainly into astrocytes when they migrate to injured cortex (Benner et al., 2013; Faiz et al., 2015), and their neurogenesis capacity is too limited to compensate for the neuronal loss. Currently, it still remains a challenge to generate neurons in adults and functionally incorporate them into the local circuits. Several strategies have shown the capability to induce neurogenesis and lead to some behavioral recovery. One promising approach is to transplant stem cell-derived neurons or neural progenitor cells (Tornero et al., 2013; Michelsen et al., 2015; Falkner et al., 2016; Somaa et al., 2017). Yet, there are concerns about graft rejection and tumorigenicity of the transplanted cells (Erdo et al., 2003; Marei et al., 2018).
A new study showing how the explosion of a stripped massive star in a supernova can lead to the formation of a heavy neutron star or a light black hole resolves one of the most challenging puzzles to emerge from the detection of neutron star mergers by the gravitational wave observatories LIGO and Virgo.
The first detection of gravitational waves by the Advanced Laser Interferometer Gravitational-Wave Observatory (LIGO) in 2017 was a neutron star merger that mostly conformed to the expectations of astrophysicists. But the second detection, in 2,019 was a merger of two neutron stars whose combined mass was unexpectedly large.
“It was so shocking that we had to start thinking about how to create a heavy neutron star without making it a pulsar,” said Enrico Ramirez-Ruiz, professor of astronomy and astrophysics at UC Santa Cruz.
Elon Musk said: In the future, you will be able to save and replay memories by Neuralink This is sounding increasingly like a Black Mirror episode.
Elon Musk says you will even be able to store your memories as a backup, and then download them into a robot body. It sounds like science fiction but Neuralink believes it could make that happen one day with a chip.
It is a brain-machine interface or BMI – a device that connects your brain to a computer. But before chasing these futuristic goals, the startup is focusing on one thing: ending human suffering.
Lebanon’s entire electric grid collapsed on Saturday when the country’s two main power stations ran out of fuel.
For months, the country had been providing citizens with a few hours of electricity a day, according to The Washington Post. Then yesterday, Lebanon’s state-owned power stations, Deir Ammar and Zahrani, ran out of diesel fuel leaving the entire country with no electricity. The outage is expected to last days.
To solve the situation, the Lebanese government is attempting to get emergency fuel from the army and other sources until the country receives and distributes a shipment of oil from Iraq.
Creating and building a “Secure Smart City” requires strong Private Public Partnerships that incorporate people, policies, processes and technology from both government and industry into the overall strategy process.
