The contrast between the James Webb Space Telescope.
The James Webb Space Telescope (JWST or Webb) is an orbiting infrared observatory that will complement and extend the discoveries of the Hubble Space Telescope. It covers longer wavelengths of light, with greatly improved sensitivity, allowing it to see inside dust clouds where stars and planetary systems are forming today as well as looking further back in time to observe the first galaxies that formed in the early universe.
Here’s an unusual fact that takes a bit of explaining. The center of the Earth is around two and a half years younger than the surface.
About 4.6 billion years ago, a hot cloud of dust orbiting the Sun coalesced and cooled. As it did so, the heavier elements formed the center of the Earth, while lighter elements formed the mantle, and the thin layer of crust formed on the surface. This all took place at the same time, with the minor caveat that Earth has accumulated more matter in the intervening years, including potentially from planet Theia, which may have formed the Moon and left mysterious structures deep within the Earth. And yet now the center is younger than the outer bits. How?
A team of physicists calculated this strange fact in 2016. The team was aware that in the 1960s theoretical physicist Richard Feynman gave a lecture in which he stated, according to the possibly erroneous transcription, that the center of the Earth is “one or two days” younger than the surface because of the time-dilating effects of gravity. The team write that they had seen this claim repeated without being checked, likely due to “proof by ethos”, where a scientist’s status is so high that their results and calculations aren’t questioned.
Part 2 ||||| You can find Part 1 here: https://youtu.be/aaf3Gwp_bfQ
Chapter list:
00:00:00 — (14) A Rabble In Arms 01
00:46:09 — (15) A Rabble In Arms 02
01:12:19 — (16) A Rabble In Arms 03
01:46:14 — (17) A Rabble In Arms 04
02:14:56 — (18) A Rabble In Arms 05
02:56:08 — (19) A Rabble In Arms 06
03:17:59 — (20) A Rabble In Arms 07
03:32:50 — (21) A Rabble In Arms 08
03:59:34 — (22) A Rabble In Arms 09
04:27:51 — (23) “Tanstaafl!” 01
04:39:45 — (24) “Tanstaafl!” 02
05:00:44 — (25) “Tanstaafl!” 03
05:27:54 — (26) “Tanstaafl!” 04
05:52:31 — (27) “Tanstaafl!” 05
06:14:53 — (28) “Tanstaafl!” 06
06:42:52 — (29) “Tanstaafl!” 07
06:48:24 — (30) “Tanstaafl!” 08
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“Luna is a twenty-first-century penal colony but, since no one can stand Earth gravity after being on the moon for a few weeks, all who are sent there must stay. When the liberated people rise against the authority, they receive unexpected help from a computer with a personality.“
Part 1 ||||| You can find Part 2 here: https://youtu.be/P1jI2Oh4-lo.
Chapter list:
00:00:00 — (i) Book info.
00:02:25 — (01) That Dinkum Thnkum 01
00:27:06 — (02) That Dinkum Thnkum 02
00:57:20 — (03) That Dinkum Thnkum 03
01:35:45 — (04) That Dinkum Thnkum 04
02:03:08 — (05) That Dinkum Thnkum 05
02:34:06 — (06) That Dinkum Thnkum 06
03:09:22 — (07) That Dinkum Thnkum 07
03:30:53 — (08) That Dinkum Thnkum 08
03:49:45 — (09) That Dinkum Thnkum 09
04:46:19 — (10) That Dinkum Thnkum 10
05:12:25 — (11) That Dinkum Thnkum 11
05:47:51 — (12) That Dinkum Thnkum 12
06:08:50 — (13) That Dinkum Thnkum 13
Like these books? Want to help?
These books come from the National Library Services.
I encourage you to donate:
https://www.loc.gov/nls/about/donate/
Basically on the pro side it could be something good to help earth but really if is on the bad side we probably want to cloak the earth with an invisibility cloak and force fields ideally so they don’t wipe us out.
An experiment aboard NASA’s Psyche mission achieved “first light” by sending and receiving its first deep-space laser communications from far beyond the moon.
The planet Mercury seems like a place inhospitable to life, with surface temperatures reaching a blistering 800 degrees Fahrenheit due to its extremely close proximity to the Sun.
But new research suggests that there are regions on the Solar System’s smallest planet that may have the right conditions for biological life to survive.
Scientists at the Planetary Science Institute (PSI) in Arizona say they’ve found evidence of salt glaciers on the planet’s surface, regions that are similar to extremely harsh and salt-rich environments on Earth where life still finds a way to exist.
NATIONAL HARBOR, Md. (AP) — Artificial intelligence employed by the U.S. military has piloted pint-sized surveillance drones in special operations forces’ missions and helped Ukraine in its war against Russia. It tracks soldiers’ fitness, predicts when Air Force planes need maintenance and helps keep tabs on rivals in space.
Now, the Pentagon is intent on fielding multiple thousands of relatively inexpensive, expendable AI-enabled autonomous vehicles by 2026 to keep pace with China. The ambitious initiative — dubbed Replicator — seeks to “galvanize progress in the too-slow shift of U.S. military innovation to leverage platforms that are small, smart, cheap, and many,” Deputy Secretary of Defense Kathleen Hicks said in August.
While its funding is uncertain and details vague, Replicator is expected to accelerate hard decisions on what AI tech is mature and trustworthy enough to deploy — including on weaponized systems.
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My name is Artem, I’m a computational neuroscience student and researcher. In this video we discuss the Tolman-Eichenbaum Machine – a computational model of a hippocampal formation, which unifies memory and spatial navigation under a common framework.
Patreon: https://www.patreon.com/artemkirsanov.
Twitter: https://twitter.com/ArtemKRSV
OUTLINE:
00:00 — Introduction.
01:13 — Motivation: Agents, Rewards and Actions.
03:17 — Prediction Problem.
05:58 — Model architecture.
06:46 — Position module.
07:40 — Memory module.
08:57 — Running TEM step-by-step.
11:37 — Model performance.
13:33 — Cellular representations.
17:48 — TEM predicts remapping laws.
19:37 — Recap and Acknowledgments.
20:53 — TEM as a Transformer network.
21:55 — Brilliant.
23:19 — Outro.
REFERENCES:
1. Whittington, J. C. R. et al. The Tolman-Eichenbaum Machine: Unifying Space and Relational Memory through Generalization in the Hippocampal Formation. Cell 183, 1249–1263.e23 (2020).
2. Whittington, J. C. R., Warren, J. & Behrens, T. E. J. Relating transformers to models and neural representations of the hippocampal formation. Preprint at http://arxiv.org/abs/2112.04035 (2022).
3. Whittington, J. C. R., McCaffary, D., Bakermans, J. J. W. & Behrens, T. E. J. How to build a cognitive map. Nat Neurosci 25, 1257–1272 (2022).
CREDITS:
Astronomers have detected a rare and extremely high-energy particle falling to Earth that is causing bafflement because it is coming from an apparently empty region of space.
The particle, named Amaterasu after the sun goddess in Japanese mythology, is one of the highest-energy cosmic rays ever detected.