- Aug 2022
In one prominent example, Steemit, a startup building a decentralized social network on their blockchain, Steem, had an on-chain governance system controlled by 20 witnesses. Voters used their STEEM tokens (the platform’s native currency) to choose the witnesses. While Steemit and Steem were gaining traction, Justin Sun had developed plans to merge Steem into Tron, a blockchain protocol he had founded in 2018. To acquire the voting power to do so, Sun approached one of the founders of Steem and bought tokens equivalent to 30 percent of the total supply. Once the then-current Steem witnesses discovered his purchase, they froze Sun’s tokens. What followed was a public back-and-forth between Sun and Steem to control enough tokens to install their preferred slate of top 20 witnesses. After involving major exchanges and spending hundreds of thousands of dollars on tokens, Sun was eventually victorious and effectively had free reign over the network.
example of an in-protocol attack
- Mar 2022
The ecliptic is tilted towards the north in the southern hemisphere,and towards the south in the northern hemisphere. Many people inthe southern hemisphere prefer housing with north-facing windowsand balconies and that take advantage of the light and warmth of theSun. Venture north of the equator, and that preference is for south-facing properties. First Peoples of the world follow the samepreference, with homes, villages and cities constructed to takeadvantage of the Sun.
Many cultures in the world face their windows, balconies, and other architecture to take advantage of the sun (for light and warmth). Because the ecliptic is tilted towards the north in the southern hemisphere and towards the south in the northern hemisphere, people in the north of the equator prefer south-facing properties and people south of the equator prefer north-facing properties.
The movements of the Sun serve as a timepiece that functions ondifferent scales: daily, seasonally and annually.
The movements of the sun throughout the year function as a timepiece at various scales to indicate days, seasons, and years.
These are theconstellations you will see in the direction of the Sun on the horizonafter sunset or before sunrise.
Just before sunrise or just after sunset, in the direction of the Sun on the horizon one will see the constellations of the zodiac.
For Aboriginal Australians,its importance is recognised by its position at the centre of thenational Aboriginal flag, developed in 1971 by Luritja artist HaroldThomas.
The Aboriginal flag was developed in 1971 by Luritja artist Harold Thomas. Centering its importance to Aboriginal Australians, the sun appears in the middle of the flag.
It's subtle here, as in other instances, but notice that Hamacher gives the citation to the Indigenous artist that developed the flag and simultaneously underlines the source of visual information that is associated with the flag and the sun. It's not just the knowledge of the two things which are associated to each other, but they're also both associated with a person who is that source of knowledge.
Is this three-way association common in all Indigenous cultures? While names may be tricky for some, the visual image of a particular person's face, body, and presence is usually very memorable and thereby easy to attach to various forms of knowledge.
Does the person/source of knowledge form or act like an 'oral folder' for Indigenous knowledge?
Yet the ancient Hebrews clearly adored them just like the other West Semites did. Ezekiel (8:16) recounts seeing people worshiping the sun in the Temple. We can infer this because the bible specifically condemns their worship, and we are told that Josiah took actions to stomp out the cult in the late First Temple period, the second half of the 7th century B.C.E. These actions included removing cult objects from the Temple itself (2 Kings 23:11).
It is likely that Beit Shemesh was a center of sun worship since the place name literally means “House of Sun.”
- Feb 2022
The Baltimore Sun begins grappling with its dark history.
Several years would pass, and a new editor-in-chief would ascend, before the paper eliminated the automatic race tags, in 1961, under pressure from readers who were sick of them.
At that time, The Sun was still choosing to identify Black people by race in its coverage — and only Black people — placing the tag “Negro” after individual names, even though many other newspapers had long since stopped similar practices. When a Westminster minister and seminary professor asked the paper to discard “this discriminatory practice” in 1955, according to an article in The Afro-American, the editor-in-chief flat out refused, self-righteously declaring that “the Sunpapers will not be a party to such suppression” of fact and that “the matter of what it is now fashionable to call ‘pigmentation’ is important from both the white and the Negro point of view.”
But the coverage, as our editorial page later noted in 2018, “deplored the inhumanity of the perpetrators without ever really acknowledging the humanity of the victims” or the community terrorized by their brutal deaths. The ire was directed at the “poor, white trash” killers, as Mencken put it; there was no empathy for — or even real interest in — the Black victims.
The next year, the paper wrote glowingly in its news pages of a segregation ordinance — “preventing negroes from moving” into majority-white neighborhoods and vice versa — signed into law in 1910. The measure was drafted, one article claimed, after white residents in the northwest section of the city decried “the encroachment of the negroes into white residential sections, lowering property values and driving white people from the neighborhoods in which, previous to the black invasion, they had liked to live.” As Antero Pietila, a former Sun reporter, noted in his 2010 book, “Not in My Neighborhood: How Bigotry Shaped a Great American City,” that particular ordinance paved the way for residential segregation in America. Nothing else like it was on the books anywhere, and legislation modeled after it soon sprung up in other regions of the country.
A segregation ordinance in 1910 in Maryland became a model for legislation in many areas of America which encouraged residential segregation across the country.
- automatic race tags
- structural racism
- racist policies
- diversity equity and inclusion
- real estate
- Baltimore Sun
Overview and history of the Antikythera mechanism and the current state of research surrounding it.
Antikythera mechanism found in diving expedition in 1900 by Elias Stadiatis. It was later dated between 60 and 70 BCE, but evidence suggests it may have been made around 205 BCE.
One of the primary purposes of the device was to predict the positions of the planets along the ecliptic, the plane of the solar system.
The device was also used to track the positions of the sun and moon. This included the moon's phase, position and age (the number of days from a new moon). It also included the predictions of eclipses.
Used to track the motions of the 5 known planets including 289 synodic cycles in 462 years for Venus and 427 synodic cycles in 442 years for Saturn.
Risings and settings of stars indexed to a zodiac dial
metonic cycle, a 19-year period over which 235 moon phases recur; named after Greek astronomer Meton, but discovered much earlier by the Babylonians. The Greeks refined it to a 76 year period.
saros cycle, the 223 month lunar cycle which was used by the Babylonians to predict eclipses. A dial on the Antikythera mechanism was used to predict the dates of the solar and lunar eclipses using this cycle.
synodic events: conjunctions with the sun and its stationary points
Archimedes - potentially the designer of an early version of the Antikythera mechanism
Elias Stadiatis - diver who discovered the Antikythera mechanism
Albert Rehm - German philologist who the numbers 19, 76 and 223 inscribed on fragments of the device in the early 1900s
Derek J. de Solla Price, published Gears from the Greeks in 1974. Identified the gear train and developed a complete model of the gearing.
Michael Wright - 3D x-ray study in 1990 using linear tomography; identified tooth counts of the gears and understood the upper dial on the back of the device
Tony Freeth - author of article and researcher whose made recent discoveries.
We added a mechanism for the variable motion of the sun and an epicyclic mechanism for calculating the “nodes” of the moon—the points at which the moon’s orbit cuts through the plane of the ecliptic, making an eclipse possible. Eclipses happen only when the sun is close to one of these nodes during a full or new moon. Medieval and renaissance astronomers called a double-ended pointer for the nodes of the moon a “dragon hand.” The epicyclic gearing for this dragon hand also exactly explained a prominent bearing on one of the spokes that had previously appeared to have no function.
The nodes of the moon are the points at which the moon's orbit cuts through the plane of the ecliptic. These nodes make an eclipse possible and they happen only when the sun is close to one of these nodes during either a full or a new moon.
Medieval and renaissance astronomers called a double-ended pointer for the nodes of the moon a "dragon hand".
- mechanical engineering
- ancient Greece
- saros cycle
- dragon hand
- metonic cycle
- nodes of the moon
- Michael Wright
- Derek J. de Solla Price
- Antikythera mechanism
- Apr 2021
Sweetshrub grows best in average to rich, well-drained soil in anywhere from full sun to deep shade. It prefers some shade in hot summer afternoons and it will grow lankier and less dense in shade than in sun. It is tolerant of a wide range of soil textures and pH but prefers rich loams. Plant it 3 to 5 feet from other shrubs to give it adequate room to grow. It blooms in early spring before leaves emerge, with the leaves, and sporadically thereafter.
Very tolerant of shade or sun and most soils.
- Oct 2020
This echos with the ending of the narrative by Mr. Jennings, where he ended with "I have seen a little sunshine - I have had a happy time." This implies that Mr. Jennings died upon seeing the sunrise. Another thing is that when Mr. Jennings first talked with Mr. Blake along the way, the weather turned from sunny to cloudy quickly.
- Aug 2020
Coronavirus update: Sun Belt surge fans recovery fears; Trump ally Herman Cain dies. (n.d.). Retrieved August 21, 2020, from https://ca.finance.yahoo.com/news/coronavirus-update-data-stokes-recovery-fears-as-cases-rise-herman-cain-dies-from-infection-171208475.html
- case number
- case increase
- death rate
- economic impact
- Herman Cain
- Sun Belt
- Jan 2020
The surface of our sun is a wild, violent place and now we can see it in exquisite detail, thanks to the first images returned by the National Science Foundation's Daniel K. Inouye Solar Telescope based in Hawaii.
I didn't even know that this was possible!
- Apr 2019
Akhenaton placed much emphasis on the worship of the Egyptian sun which can be seen from many artistic depictions of a connection between the Pharoh and his family. Some debate has focused on the extent to which Akhenaten forced his religious reforms on his people. Certainly, as time drew on, he revised the names of the Aten, and other religious language, to increasingly exclude references to other gods; at some point, also, he embarked on the wide-scale erasure of traditional gods' names, especially those of Amun.
- Nov 2018
That makes this challenge a lot harder to resolve than if we had tried a century ago
But even if we had tried a century ago, would it have mattered? The article just stated that "we'd have gotten segregated cities anyways because of behavior that's beyond the reach of regulation."
racial preferences still shape where people choose to live today.
Fear of what is different?
behavior that's beyond the reach of regulation
Good way of explaining why we still see segregation in our communities
What is a restrictive covenant?
Fair Housing Act
What does this act say? When was it passed?
"we would still have very segregated cities, because a certain number whites were unwilling to live with blacks."
Segregation is still present today. A great example of this is the segregation and disparities we see in inner city public schools.
Shertzer and Walsh are pointing to another set of factors — not the policies of institutions, but the behavior of individuals.
Racist behaviors. But I do not see how this is novel information? This time period is teeming with examples of racist behavior not motivated by institutional policies.
That makes this earlier form of white flight even more striking; their new homes didn't necessarily have lower taxes or better school districts, factors that complicated the motivations of later generations of whites.
OK... so this era of White flight is striking because they were leaving for purely racist motivations. Not because there were also better reasons to move out of the city (lower taxes, better schools).
"Whites left the neighborhood as a result of blacks arriving," Shertzer says, "not for other reasons."
So... racism? Is that what they are considering a "casual" reason for leaving?
As blacks arrived in northern neighborhoods, more whites left.
I can understand why White people were able to move from neighborhoods. However, how were cities legally able to keep African Americans from moving in to certain neighborhoods?
relevant to American cities that are still racially divided today
Which cities? I think the cities that are racially divided today would be similar to the ones that were segregated in the past (Chicago, New York, Detroit).
"White flight" is usually described as a post-World War II phenomenon
I wonder why "White flight" is typically associated with this time period? I think I remember learning about a GI Bill that encouraged this once the soldiers returned home from war.
- Apr 2017
Super-charged solar winds flowing from the Sun’s atmosphere are expected to reach Earth on April 23 or 24.
Whoa! I'll be flying.