.*
9/8/18 paul oyer: fei-fei li : lei zhang - WE WELCOME q&a THE MORE MATHEMATUCAL OR HUMAN THE BETTER chris.macrae@yahoo.co.uk MA stats cambridge 1973

2016 bangladesh schools go edigital nationwide :: brookings video :: Bangla video :: brac how's that
1/1/21 we have entered the most exciting decade to be alive- by 2030 we will likely know whether humans & tech wizards can save futureoflife- tech surveys indicate odds of accomplishing this greatest human mission would be lot less without spirit of a chinese american lady at stanford-...
bonus challenge for those on road to glasgow cop2 nov2021: future 8 billion peoples want to value from 2021 rsvp chris.macrae@yahoo.co.uk

GAMES of world record jobs involve
*pack of cards: world record jobs creators eg fei-fe li ; fazle abed ...
*six future histories before 2021 starts the decade of empowering youth to be the first sustainable generation.

problem 99% of what people value connecting or doing to each other
has changed (and accelerated in last three quarters of a century- while laws, culture and nature's diversity and health are rooted in real-world foundations that took mother earth 1945 years to build with -and that's only using the christian calendar

1995 started our most recent quater of a century with 2 people in Seattle determined to change distribution of consumers' markets - the ideas of how of bezos and jack ma on what this would involve were completely different except that they changed the purpose of being online from education knowledge to buying & selling things -
nb consuming up things is typically a zero-sum game or less if done unsustainable- whereas life-shaping knowhow multiplies value in use
from 1970 to 1995 knowhow needed to end subsistence poverty of over a billion asian villagers was networked person to person by women with no access to electricity grids- their number 1 wrjc involved partnerships linked by fazle abed - borlaug's crop science was one of the big 5 action learnings -its person to person application saved a billion people from starvation; the first 185 years of the machie age started up bl glasgow university's smith an watt in 1760 had brought humans to the 2 world wars; when people from nearly 200 nations founded the united nations at san francisco opera house 1945 chances of species survival looked poor- miraculous;y one mathematician changed that before he died 12 years later- john von neumann's legacy was both the moon race and twin artificial intel labs - one facing pacific ocean out of stanford; the other facing the atlantic out of mit boston .. who are top job creating economists by practice - health -refugee sports green hong kong..where are top tour guides around billionaire 1 2 around poverty,,, we the peoples ...

Monday, March 29, 1971

David Alter

From Wikipedia, the free encyclopedia
Jump to navigationJump to search
Portrait of Dr. David Alter, printed in the book History of the County of Westmoreland, Pennsylvania (1882).
David Alter (December 3, 1807 – September 18, 1881) was a prominent American inventor and scientist of the 19th century. He was born in Westmoreland County, Pennsylvania and graduated from the Reformed Medical School in New York City. He had German and Swiss ancestry.[1]

Inventions[edit]

Dr. David Alter is credited with having invented:
  • 1836 - the electric telegraph, predating the Morse telegraph in 1837.[2][3][4]
  • 1840 - his electric buggy - the forerunner of the automobile.
  • 1845 - a patented method to manufacture and purify bromine from salt wells, highly useful in the iron industry and displayed in the World's Fair of 1853 (see: Exhibition of the Industry of All Nations in New York City).
  • 1854 - spectrum analysis, the idea that every element has its own emission spectrum: a breakthrough development in spectroscopy. The published article was: On Certain Physical Properties of Light Produced by the Combustion of Different Metals in an Electric Spark Refracted by a Prism.[5] He included a chart of the colored lines or bands of twelve metals and paved the way by showing the spectral lines of brass corresponded to copper and zinc.
  • 1855 - an expansion of spectrum analysis to include the optical properties of gas.[6] These discoveries were later implemented and included by Gustav Kirchhoff and Robert Bunsen in the Three Laws of Spectroscopy.
  • 1858 - a patented method to extract oil from coal and shale, along with a partner Samuel Hill. Their invention sped manufacturing, but was replaced by technology in a few years.
  • An electric clock.
  • A short range type of telephone - forerunner of the Graham Bell telephone.

No comments:

Post a Comment