It is literally a see-through galaxy.”
For one thing, it completely changes how we think galaxies owrk.
Posted in space
Posted in space
What’s up in the sky this month? You can’t miss bright Venus in the predawn hours, Saturn at sunset, Mars in the evening and much more. Find out when and where to look up: https://go.nasa.gov/2Q8YudW
Posted in health, neuroscience
🤔👀
A new study puts a fresh spin on what it means to “go with your gut.” The findings, published in Nature, suggest that gut bacteria may control movement in fruit flies and identify the neurons involved in this response. The study was supported by the National Institute of Neurological Disorders and Stroke (NINDS), part of the National Institutes of Health.
In 40 years, human actions like deforestation have taken a major toll on wildlife, a new report finds.
Two men who were paralysed in separate accidents more than six years ago can stand and walk short distances on crutches after their spinal cords were treated with electrical stimulation.
David Mzee, 28, and Gert-Jan Oskam, 35, had electrical pulses beamed into their spines to stimulate their leg muscles as they practised walking in a supportive harness on a treadmill.
Based on observations by the European Souther Observatory’s GRAVITY instrument, this simulation shows gases swirling around the black hole at the center of the Milky Way — at just 30% the speed of light — “the first time material has been observed orbiting close to the point of no return.”
ESO/Gravity Consortium/L. Calçada
Perhaps the most important supernova of the modern era is SN 1987A, the closest supernova to Earth since the invention of the telescope. Scientists have been observing the explosion’s remnants since the 1987 event.
Scientists led by University of Toronto graduate student Yvette Cendes have presented a new report showing the 25 years of radio wave observations of the stellar corpse’s evolution from 1992 to 2017. You can watch those observations in the timelapse below.
A detailed picture of cell types in some areas of the mouse cortex is put to the test.
At Quora.com, I respond to quetions on Bitcoin and Cryptocurrency. Today, a reader asked “Will we all be using a blockchain-based currency some day?”.
This is an easy question to answer, but not for usual Geeky reasons: A capped supply, redundant bookkeeping, privacy & liberty or blind passion. No, these are all tangential reasons. But first, let’s be clear about the answer:
Yes, Virginia. We are all destined to move,
eventually, to a blockchain based currency.
I am confident of this because of one enormous benefit that trumps all other considerations. Also, because of flawed arguments behind perceived negatives.
Let’s start by considering the list of reasons why many analysts and individuals expect cryptocurrencies to fail widespread adoption—especially as a currency:
All statements are untrue, except the last two. My thoughts on each point are explained and justified in other articles—but let’s look at the two points that are partially true:
How so?…
Legislators, treasuries and reserve boards will lose their ability to manipulate the supply and demand of money. That’s because the biggest spender of all no longer gets to define “What is money?” Each dollar spent must be collected from taxpayers or borrowed from creditors who honestly believe in a nation’s ability to repay. Ultimately, Money out = Money in. This is what balancing the books requires in every organization.
This last point leads to certainty that we will all be using a blockchain based cryptocurrency—and not one that is issued by a government, nor one that is backed by gold, the dollar, a redemption promise—or some other thing of value.
Just like the dollar today, the value arises from trust and a robust two sided network. So, which of these things would you rather trust?
a) The honesty, fiscal restraint and transparency of transient politicians beholden to their political base?
b) The honesty, fiscal restraint and transparency of an asset which is capped, immutable, auditable? —One that has a robust two sided network and is not gated by any authority or sanctioned banking infrastructure
Today, with the exception of the United States Congress, everyone must ultimately balance their books: Individuals, households, corporations, NGOs, churches, charities, clubs, cities, states and even other national governments. Put another way: Only the United States can create money without a requirement to honor, repay or demonstrate equivalency. This remarkable exclusion was made possible by the post World War II evolution of the dollar as a “reserve currency” and the fractional reserve method by which US banks create money out of thin air and then lend it with the illusion of government insurance as backing. (A risky pyramid scheme that is gradually unravelling).
But, imagine a nation that agrees upon a form of cash that arises from a “perfect” and fair natural resource. Imagine a future where no one—not even governments—can game the system. Imagine a future where creditors know that a debtor cannot print paper currency to settle debts. Imagine what can be accomplished if citizens truly respect their government because the government lives by the same accounting rules as everyone else.
A fair cryptocurrency (based on Satoshi’s open-source code and free for anyone to use, mine, or trade) is gold for the modern age. But unlike gold, the total quantity is clearly understood. It is portable, electronically transmittable (instant settlement without a clearing house), immutable—and it needn’t be assayed in the field with each transaction.
And the biggest benefit arises as a byproduct directly of these properties: Cryptocurrency (and Bitcoin in particular) is remarkably good for government. All it takes for eventual success is an understanding of the mechanism, incremental improvement to safety and security practices and widespread trust that others will continue to value/covet your coins in the future. These are all achievable waypoints along the way to universal adoption.
Philip Raymond co-chairs CRYPSA, hosts the Bitcoin Event and is keynote speaker at Cryptocurrency Conferences. He advises The Disruption Experience in Singapore, sits on the New Money Systems board of Lifeboat Foundation and is a top writer at Quora. Book a presentation or consulting engagement.