A Sea Drift

https://digitalcommons.library.umaine.edu/mmb-vp/6491/thumbnail.jp

Lawson criterion for ignition exceeded in an inertial fusion experiment

For more than half a century, researchers around the world have been engaged in attempts to achieve fusion ignition as a proof of principle of various fusion concepts. Following the Lawson criterion, an ignited plasma is one where the fusion heating power is high enough to overcome all the physical processes that cool the fusion plasma, creating a positive thermodynamic feedback loop with rapidly increasing temperature. In inertially confined fusion, ignition is a state where the fusion plasma can begin "burn propagation" into surrounding cold fuel, enabling the possibility of high energy gain. While "scientific breakeven" (i.e., unity target gain) has not yet been achieved (here target gain is 0.72, 1.37 MJ of fusion for 1.92 MJ of laser energy), this Letter reports the first controlled fusion experiment, using laser indirect drive, on the National Ignition Facility to produce capsule gain (here 5.8) and reach ignition by nine different formulations of the Lawson criterion

Letter - Bliss Carman to Ethelwyn Wetherald, 15 Decemer 1897

This letter from William Bliss Carman to Ethelwyn Wetherald in 1897, includes a photo of Carman with Miss M. B. Stevenson from the year 1927. Carman, originally from Canada, had great success asA letter from William Bliss Carman to fellow poet Ethelwyn Wetherald in the year 1897. Carman mentions other Canadian poets, Lampman and Roberts, and his "regret" that he cannot stay in closer contact with his fellow Canadian poets. Carman was born in Fredericton in 1861, but spent most of his life in the United States. He was known as a great Canadian poet, but also a famous American poet

Carte de Noël de Bliss Carman à Mme Benedict

7 pages, originalCarte de Noël de Bliss Carman à Mme Benedict

Brouillon de poème par Bliss Carman

2 pages, originalLe premier vers: ""The Country calls you""Brouillon de poème [par Bliss Carman]. (Le premier vers: ""The Country calls you""

Enveloppe adressée de Bliss Carman à Margaret Laurence

2 pages, originalEnveloppe adressée de Bliss Carman à Margaret Laurence

A CHEMICAL STUDY OF CARDIAC GLYCOSIDES IN EVONYMUS ATROPURPUREA, JACQ.

Abstract not availabl

Pipes of Pan. [containing "From the book of myths", "From the green book of the bards", "Songs of the sea children", "Songs from a northern garden", "From the book of valentines"]

Each part has illustrated half-title and separate paging.Title in red and green within green ornamental border.Mode of access: Internet

The kinship of nature.

The art of life.--On being strenuous.--The crime of ugliness.--Miracles and metaphors.--Haste and waste.--At the coming of spring.--The vernal ides.--The seed of success.--Fact and fancy.--Easter eve.--The cost of beauty.--Rhythm.--April in town.--Careless nature.--The wandering word.--The friendship of nature.--Subconscious art.--Seaboard and hillward.--The courtesy of nature.--The luxury of being poor.--"Solitary the thrush."--Trees.--The ritual of nature.--Concerning pride.--Of breeding.--Of serenity.--Play.--The scarlet of the year.--Good fortune.--The debauchery of mood.--Of moderation.--Atmosphere.Mode of access: Internet