linkedin post 2021-06-29 04:06:48
The microclimate afforded by trees is physically similar to swimming in the sea and coming across layers of unmixed water at different temperatures. View in LinkedIn
linkedin post 2021-07-01 04:21:08
BACTERIAL IMMUNITY. “Together with the Cas enzymes of the CRISPR system, these spacers allow the bacteria to recognize non-self DNA and remove it before it is incorporated into the genome. Hence, the bacteria can have "memory" of a previous infiltration, which helps it respond to any future attempts.” The basis of our new-found gene editing ability. https://lnkd.in/dSwmRvM View in LinkedIn
linkedin post 2021-06-29 04:04:05
NEW LAWS. “The lowest temperature currently achieved in laboratories is of the order of picokelvins, i.e. many orders lower than the average temperature of the universe T = 2.73 K. At these temperatures we gain access to a world of exotic phenomena and physics that was once ordinary becomes extraordinary.” The laws of physics at extreme temperatures, densities and pressures are unknown, all common in the cosmos. https://lnkd.in/d63FZYV View in LinkedIn
linkedin post 2021-07-01 04:20:35
APPRECIABLE EFFECT. “Gas accretion on to BHs due to disc instabilities seems to be a non-negligible trigger mechanism for moderately luminous AGN with BH masses 10(7) < M• < 10(8) M⊙ at low redshift.” (BH = black hole; AGN = active galactic nuclei). https://lnkd.in/d9JV8md View in LinkedIn
linkedin post 2021-07-01 04:18:56
FEEDBACK LOOP. “In our model, the gas content of massive galaxies is strongly dependent on the radio-mode AGN feedback, which suppresses cooling in massive haloes at low redshift. Low cold gas fractions may retard the loss of angular momentum due to smaller viscosity and thus, the cold gas flow on to the central BH may be suppressed.” (BH = black hole; AGN = active galactic nuclei). https://lnkd.in/d9JV8md View in LinkedIn
linkedin post 2021-07-01 04:17:50
GORGING. “The BH-to-bulge mass ratio was larger at higher redshifts than expected from the local BH–bulge mass relation. This eventually implies that BHs were accreting more gas and thus, growing faster than the corresponding bulges at high redshifts than at lower ones.” (BH = black hole). https://lnkd.in/d9JV8md View in LinkedIn
linkedin post 2021-07-03 05:52:09
INTERLOCKING. “When a medium first appears, it uses the content of another medium exclusively for its content until its users have learned to exploit the new medium to develop new forms of expression. We saw that writing and mathematical notation made use of spoken language for its content.” https://link.springer.com/chapter/10.1007/978-3-030-59177-9_13 View in LinkedIn
linkedin post 2021-07-03 05:50:41
NESTED CONTENTS. “The content’ of any medium is always another medium. The content of writing is speech, just as the written word is the content of print, and print is the content of the telegraph.” (Marshall McLuhan, 1964). The content of the Internet is computing and the content of computing is science and the content of science is mathematics and writing and the content of mathematics and writing is speech.” https://link.springer.com/chapter/10.1007/978-3-030-59177-9_13 View in LinkedIn
linkedin post 2021-07-03 05:49:13
FRAGMENT FROM NATURE continues from last weekend and ends this weekend on the theme of the relationship between language and mathematics. The ability to count and to speak are foundations of culture, and are at the root of complex thought, self-knowledge, and the methods of understanding the world around us. Nature may have stumbled upon this and found it to be a way to look at herself from within. View in LinkedIn
linkedin post 2021-07-02 04:13:40
An exquisite Alhabra style design created by simple geometry that becomes seemingly asymmetric when you flip to the negative image, the spaces between the darker motifs. View in LinkedIn