Friday, March 2, 2012

old is new


Beginning in the 1880's up until World War Two, hoboes placed markings on fences, posts, sidewalks, buildings, trestles, bridge abutments, and railroad line side equipment to aid them and others of their kind in finding help or steering them clear of trouble. Usually, these signs would be written in chalk or coal letting others know what they could expect in the area of the symbol...Today hoboes communicate with cellular phones, and e-mail...




The hobo nickel is a sculptural art form... essentially resulting in miniature bas reliefs. The nickel, because of its size, thickness, and relative softness, was a favored coin for this purpose...



Due to its low cost and portability, this medium was particularly popular among hobos, hence the name.

The abundance of nickel in Earth's crust is 90 parts per million...In meteorites, however, its abundance approaches 13,000 ppm. Much of the world's supply of nickel is found in Ontario, Canada, where it is isolated from the ores pentlandite and pyrrhotite. Other large deposits are found in Australia, New Caledonia, Cuba, Indonesia, and Greenland.


Saturday, February 18, 2012

G'day y'all

Who hasn't changed their inflection depending on the social circle? Baaaaaaa...


Humans, elephants and dolphins do it, and apparently goats do, too.

The horned ruminants pick up accents as they get older and join social groups, according to researchers at Queen Mary University, London, The Daily Telegraph reported Thursday.

Experts previously thought only a select group of mammals has the ability to modify vocal sounds according to their surroundings, and that other species' "voices" were determined solely by genetics. Whales and bats pick up accents as well.

Source.

Wednesday, February 15, 2012

Saint Hilda

Blessed Hildegard of Bingen (German: Hildegard von Bingen; Latin: Hildegardis Bingensis) (1098 – 17 September 1179), also known as Saint Hildegard, and Sibyl of the Rhine, was a German writer, composer, philosopher, Christian mystic, Benedictine abbess, visionary, and polymath. One of her works as a composer, the Ordo Virtutum, is an early example of liturgical drama and arguably the oldest surviving morality play.




She wrote theological, botanical and medicinal texts, as well as letters, liturgical songs, and poems, while supervising brilliant miniature Illuminations...



..It is possible that Hildegard could have been a chantress and a worker in the herbarium and infirmarium.In any case, Hildegard and Jutta were enclosed at Disibodenberg in the Palatinate Forest in what is now Germany. Jutta was also a visionary and thus attracted many followers who came to visit her at the enclosure...

Upon Jutta's death in 1136, Hildegard was unanimously elected as "magistra" of her sister community by her fellow nuns. Abbot Kuno, the Abbot of Disibodenberg, also asked Hildegard to be Prioress. Hildegard, however, wanted more independence for herself and her nuns and asked Abbot Kuno to allow  them to move to Rupertsberg...When the abbot declined Hildegard's proposition, Hildegard went over his head and received the approval of Archbishop Henry I of Mainz...

...Hildegard and about twenty nuns thus moved to the St. Rupertsberg monastery in 1150, where Volmar served as provost, as well as Hildegard's confessor and scribe. In 1165 Hildegard founded a second convent for her nuns at Eibingen.






Hildegard says that she first saw "The Shade of the Living Light" at the age of three, and by the age of five she began to understand that she was experiencing visions. She used the term 'visio' to this feature of her experience, and recognized that it was a gift that she could not explain to others. Hildegard explained that she saw all things in the light of God through the five senses: sight, hearing, taste, smell, and touch.

...Hildegard was hesitant to share her visions, confiding only to Jutta, who in turn told Volmar, Hildegard's tutor and, later, secretary. Throughout her life, she continued to have many visions, and in 1141, at the age of 42, Hildegard received a vision she believed to be an instruction from God, to "write down that which you see and hear." Still hesitant to record her visions, Hildegard became physically ill.

...Hildegard left behind over 100 letters, 72 songs, 70 poems, and 9 books...




Hildegard communicated with popes such as Eugene III and Anastasius IV, statesmen such as Abbot Suger, German emperors such as Frederick I Barbarossa, and other notable figures such as Saint Bernard of Clairvaux, who advanced her work, at the behest of her abbot, Kuno, at the Synod of Trier in 1147 and 1148...


...In space, she is commemorated by the asteroid 898 Hildegard.


Thursday, January 19, 2012

Strategic Time, or, Can't stop won't stop

The ITU Radiocommunication Assembly has reached an important decision to defer the development of a continuous time standard in order to address the concerns of countries that use the current system of the leap second in Coordinated Universal Time...



Adjustments made in one second steps, known as ‘leap seconds’, have been implemented since 1972 to compensate for variations in the speed of the earth’s rotation...

The suppression of the leap second would make continuous time scale available for all the modern electronic navigation and computerized systems to operate with and eliminate the need for specialized ad hoc time systems. This however may have social and legal consequences when the accumulated difference between UT1 – Earth rotation time – would reach a perceivable level (2 to 3 minutes in 2100 and about 30 minutes in 2700).
Source.

Emphasis mine.



The Earth's rotation speed can be measured using different techniques...

The rotation data shows oscillations over several different timescales. The one with the largest variation is seasonal: Earth slows down in January and February.

"It turns out that during the Northern Hemisphere winter, the winds - which are predominantly west to east - are stronger," Salstein said.

The more forceful winds double the angular momentum of the atmosphere...

This means the days get longer - by a few thousandths of a second.

Source.

Friday, December 30, 2011

Happy New Year


This dismissory song now used throughout the English-speaking world. In Scotland, it gradually displaced the century-old 'Good-night and joy be wi' you a'.' In spite of the popularity of 'Auld Lang Syne', it has aptly been described as 'the song that nobody knows'. Even in Scotland, hardly a gathering sings it correctly, without some members of the party introducing the spurious line: 'We'll meet again some ither nicht' for the line which Burns actually wrote: 'And we'll tak' a cup o' kindness yet'. To say nothing of adding 'the days of' to the line 'For auld lang syne'!

Source.