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Detailed text transcripts for TV channel - CNN - 20210613:14:53:00

Crucial feature of these currents is that they are largely untraceable. at least until very recently. every successful technology fills some need or solves some problem. what is the need that cryptocurrencies fill. it is not to buy and sell on the web or to move money electronically. all of that could easily been done using transitional financial institutions and new interfaces like paypal or apple pay. but none of these could replace chateauing transactions that take place in the analog world where one person hands another a bag of cash. that transaction is inefficient but secret and largely untraceable. cryptocurrencies allow you to do something similar but digitally. no, this is not a matter of a private discrete payment, see a man would wants to book a hotel in paris for a weekend without his wife knowing. ....

All Of Us , Mo Ney , Crypto Currency ,

"Fabrication of a Composite Material of High-Chromium Cast Iron Dispers" by Guofeng Yuan, Peisheng Han et al.


Abstract
To obtain a compatible material with good wear resistance (WR) and toughness, a composite material with high-chromium cast iron (HCCI) dispersed in low-carbon steel (LCS) is prepared through multilayer hot rolling. The microstructure and mechanical properties of the composite are investigated. The macrostructure of the composite material reveals that the HCCI layers are necked, fractured, and dispersed in LCS after hot rolling. The two materials combine well without unconnected areas and macrovoids on the interface; however, broken oxides are observed at the interface. Decarburization occurs at the LCS side near the interface and a 15−20 μm-wide ferrite zone is formed at the LCS side. Fe, Cr, Mn, and C elements diffuse at the interface. A pearlite band is formed at the interface, and the thickness of the diffusion is about 2−4 μm. Due to the addition of ductile LCS, the impact toughness of the composite material is about 2.5 times higher than that of the as-cast ....

Igh Chromium Cast Iron , Lot Rolling ,