Tech Tuesday 060224

11 months ago (Edited)

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2️⃣ Tech Tuesday:

Dive into the latest tech trends, coding adventures, or gadget reviews.
Tags: #TechTuesday #Blockchain #Coding

#1

Meta AI goes Live - Today many people have undoubtedly become aware that there are new AI Text options on Facebook Messenger. I decided to read up and they have announced that they will be marking AI images with invisible watermarks, and have already embedded their own in Meta AI Generated images. They feel confident they can identify fake images, and some ChatGPT text, but not video yet.

#2

"Researchers create first functional semiconductor made from graphene" allowing for new types of electronics to be developed. I learned a new term, two-dimensional "Epitaxial graphene" which is a "sheet of sp2-bonded carbon arranged in a honeycomb lattice" [src] which can be "rolled up into cylinders with nanometer-scale diameters, and buckminsterfullerene (“buckyballs”), which are graphitic molecular cages" [src].

Additionally, "graphene on SiC will be the platform used to fabricate high-speed electronic devices and dense graphene nanoribbon arrays, which will be used to introduce a bandgap" [src].

"A band gap is the distance between the valence band of electrons and the conduction band. Essentially, the band gap represents the minimum energy that is required to excite an electron up to a state in the conduction band where it can participate in conduction." [src]

"Although various carbon cages were studied, it was only in 1991, when Iijima [2] reported tubular carbon structures for the first time. The nanotubes consisted of up to tens of graphitic shells, so it was called multiwalled carbon nanotubes (MWNT)."
https://www.sciencedirect.com/topics/earth-and-planetary-sciences/buckminsterfullerene

What sorts of things would you make out of Carbon Nanotubes? I would want to use them to climb like spider man, or maybe they could be used to build actual hoverboards that work. Perhaps new types of fabric will be created that can change shapes and colours. Perhaps new types of wearable electronic computers will be built, where they are almost weightless.

#3

Daily Sea Surface temperature has reached 21.1'C [climate-reanalyzer] and humans aren't sure what to do about it. Banning Plastic Straws and Plastic Bags didn't stop it. How can humanity avert a crisis that began over a century ago, when the industrial revolution set off a transformation of our climate? What does this sea temperature rise mean for every day people? I feel a sense of panic & fear but helplessness too.

https://climatereanalyzer.org/clim/sst_daily/#info

"This page provides time series and map visualizations of daily mean Sea Surface Temperature (SST) from NOAA Optimum Interpolation SST (OISST) version 2.1. OISST is a 0.25°x0.25° gridded dataset that provides estimates of temperature based on a blend of satellite, ship, and buoy observations. The datset spans 1 September 1981 to present with a 1 to 2-day lag from the current day." Climate scientists are panicking while others claim this is fear mongering "based on the pretense that ocean surface temperature can be accurately measured for the entire ocean to a fraction of a degree".

We know that one of the consequences is 'the need to reduce emissions' but some other risk include damage to underwater biology due to heat waves, and more powerful hurricanes and tropical storms. Once I read the most important paper ever.

https://peakd.com/@darkflame/humans-are-sleepwalking-into-extinction

MASS EXTINCTIONS AS SHADOWS OF ANTI-ENTROPIC GROWTH
Macro-Ecological Revolutions
Benjamin Deniston ([email protected])

"these studies indicate very specific conditions required for the survival of any species, including our own."

"Early Paleozoic radiations established stable ecosystem relationships, and thereafter only the great era-bounding mass extinctions were able to break patterns of incumbency, permitting the emergence of new community structures with distinct proportional diversity relationships.", "Thus, the lesson of the mass extinction – one to be taken with the utmost seriousness and urgency at the immediate time."

So I leave this for your comment, do you believe we are at a crisis point? Do you think Human Extinction is a real possibility, or an overhyped fear? What is the truth you see?

#4

SpaceX Dragon will be 'undocking' soon, bringing home "Four Ax-3 Astronauts Board Station and Meet Expedition 70 Crew" who arrived at the International Space Station on Saturday, Jan. 20. "Undocking is set for no earlier than 6:05 a.m. EST Saturday, Feb. 3. Hatch-closure preparation coverage will begin at 4 a.m. Undocking coverage will resume at 5:45 a.m. https://go.nasa.gov/3SKfhGE"

How cool would it be to take the Dragon Spaceship to Earth Orbit!? So cool!!

"Axiom Mission 3 (Ax-3) astronauts Michael López-Alegría, Walter Villadei, Marcus Wandt, and Alper Gezeravci are now aboard.." [nasa].

"NASA Flight Engineers Loral O’Hara and Moghbeli took turns unpacking some of the several tons of cargo packed inside the Northrop Grumman Cygnus space freighter. The pair later helped the Ax-3 crew stow science experiments and computer gear inside Dragon. Flight Engineer Satoshi Furukawa from JAXA (Japan Aerospace Exploration Agency) also assisted with the Cygnus cargo work then set up hardware to explore how plant-microbe interactions are affected in microgravity. Mogensen spent his morning processing his blood and saliva samples for an investigation exploring how a crew member’s immunity system changes during a space mission." [nasa]

[made with unreal engine 4.1]

Within my lifetime it will hopefully become possible to visit upper orbit for less than $100,000, and it could be as common for someone to visit a space-hotel as perhaps it is to take a trip to paris. The possibility that private space flight could be used for earth travel, cutting down the time it could take to reach another continent, would give airlines a run for their money. They will need to increase their customer services dramatically.

#5

ReTro the Cloned Monkey

"They named the monkey "ReTro", after the scientific method, called "trophoblast replacement", used to produce the animal."

A "Cloned rhesus monkey" was "created to speed medical research," explained in a paper called "Reprogramming mechanism dissection and trophoblast replacement application in monkey somatic cell nuclear transfer", where they explain that "Our study conducts a comparative analysis of multi-omics datasets, comparing embryos".
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10791636/

Published online 2024 Jan 16. doi: 10.1038/s41467-023-43985-7
PMCID: PMC10791636, PMID: 38228612

"Our findings reveal a widespread decrease in DNA methylation and the loss of imprinting in maternally imprinted genes within SCNT monkey blastocysts. This loss of imprinting persists in SCNT embryos cultured in-vitro until E17 and in full-term SCNT placentas."

In monkeys created through a specific cloning method, there is a common reduction in a process called DNA methylation and the "imprinting" of certain genes from the mother. This change in gene imprinting continues in the embryos and placentas as they develop.

"histological examination of SCNT placentas shows noticeable hyperplasia and calcification. To address these defects, we develop a trophoblast replacement method, ultimately leading to the successful cloning of a healthy male rhesus monkey. "
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10791636/

In an age of genetic modification I wonder what the evolutionary biologists of the future will have to say. I have been reading up on Genetic Modification this week, looking at different papers. From "genetic determinism" to "Genetically modified plants and human health" this is a subject that needs much more discussion for common understanding.

I recently stopped eating these Golden Delicious apples that I like so much because they are engineered not to bruise as much, and when I slice them now I can see that.

What are you most excited about?

Which one scares you the most? What are the risks of living?
We are here to learn all we can and discover the unknown.

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