The First Simulated Image Of A Black Hole Was Calculated With An IBM 7040 Computer Using 1960 Punch Cards

The First Simulated Image Of A Black Hole Was Calculated With An IBM 7040 Computer Using 1960 Punch Cards

The first simulated image of a black hole was calculated with an IBM 7040 computer using 1960 punch cards and hand-plotted by French astrophysicist Jean-Pierre Luminet in 1978.

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3 years ago

For her

Marvelland
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Marvelland

2 years ago

“You want a tea?

“No, I want romance. I want music. I want love and beauty.

“But not tea, eh? Amazing …”

3 years ago
William Scully (American, B. 1967, Based Boston, MA, USA) - 1: Water Lily Study No. 18  2: Water Lily
William Scully (American, B. 1967, Based Boston, MA, USA) - 1: Water Lily Study No. 18  2: Water Lily

William Scully (American, b. 1967, based Boston, MA, USA) - 1: Water Lily Study No. 18  2: Water Lily Study No. 20, Underwater Photography

6 years ago

Not showing blood on violent games could cause a disconnect between violent behavior and doing harm to others, making child more violent on the long run (source)

2 years ago
Haus-Rucker-Co, Günter Zamp Kelp, Laurids Ortner, Manfred Ortner, Klaus Pinter. Palmtree Island (Oasis)

Haus-Rucker-Co, Günter Zamp Kelp, Laurids Ortner, Manfred Ortner, Klaus Pinter. Palmtree Island (Oasis) Project, New York, New York, Perspective, 1971.

3 years ago
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2 years ago
I Laughed Way Too Hard At This

I laughed way too hard at this

3 years ago
Sumerian Cuneiform Tablet (c. 3100 – 2900 BC).  Administrative Account Recording The Distribution
Sumerian Cuneiform Tablet (c. 3100 – 2900 BC).  Administrative Account Recording The Distribution
Sumerian Cuneiform Tablet (c. 3100 – 2900 BC).  Administrative Account Recording The Distribution
Sumerian Cuneiform Tablet (c. 3100 – 2900 BC).  Administrative Account Recording The Distribution

Sumerian cuneiform tablet (c. 3100 – 2900 BC).  Administrative account recording the distribution of barley and emmer wheat. Probably from Uruk (Warka, Iraq).

The first system of writing in the world was developed by the Sumerians, beginning c. 3500 – 3000 BC.  It was the most significant of Sumer’s cultural contributions, and much of this development happened in the city of Uruk.

A stylus was used to creat wedge-like impresssions in soft clay, and the clay was fired afterwards.  The word “cuneiform” comes from the Latin cuneus, meaning “wedge”.

These wedge-like impressions were first pictographs, and later on phonograms (symbols representing vocal sounds) and “word-concepts” – closer to a modern-day understanding of words and writing.  All the great Mesopotamian civilizations used cuneiform, including the Sumerians, Akkadians, Babylonians, Hatti, Hittites, Assyrians and Hurrians.  Around 100 BC, it was abandoned in favour of the alphabetic script.

The earliest texts used proto-cuneiform, and were pictorial. Writing was a technique for noting down things, items and objects (e.g. Two Sheep Temple God Inanna).  This system worked well for concrete, visible subjects, but could give little in the way of details.  As subject matter became more intangible (e.g. the will of the gods, the quest for immortality), cuneiform developed in complexity to represent this.

By 3000 BC, the representations were more simplified.  The stylus’ impressions conveyed word-concepts rather than word-signs – for example, the scribe could write about the more abstract concept of “honour”, rather than having to specifically depict “an honourable man”.

The “rebus” principle was used to isolate the phonetic (sound) value of a particular sign.  Rebus is a device that combines pictures (or pictographs) with individual letters to depict words and/or phrases.  For example, the picture of a bumblebee followed by the letter “n” would represent the word “been”.  With the rebus principle, scribes could express grammatical relationships and syntax to clarify meaning and be more precise.

There are only a few examples of the use of rebus in the earliest stages of cuneiform (c. 3200 – 3000 BC).  Consistent usage of rebus became apparent only after c. 2600 BC.  This was the beginning of a true writing system, characterized by a complex combination of word signs and phonograms (signs for vowels and syllables).

By c. 2500 BC, cuneiform (written mostly on clay tablets) was used for a wide variety of religious, political, literary, scholarly and economic documents.

Now the reader of the tablet didn’t have to struggle with the meaning of a pictograph – they could read word-concepts that more clearly conveyed the scribe’s meaning.  The number of characters used in writing was reduced from 1000 to 600, to make it simpler.

By the time of the famous priestess-poet Enheduanna (c. 2285 – 2250 BC), cuneiform had become sophisticated enough to convey not only emotional states such as love or betrayal, but also the reasons behind the writer’s experience of these states.  Enheduanna wrote a collection of hymns to Inanna in the Sumerian city of Ur, and she is the first author in the world known by name.

8 months ago

Guys our community for Hinduism just got approved!!!

Guys Our Community For Hinduism Just Got Approved!!!

Reblog or slide into the replies for an invite!!

So excited for this!!!

Let’s reach all Hindus on tumblr!

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