Clic pe imagine pentru a accesa rezoluţia maximă


¦
 ŞTIINŢĂ ŞI TEHNOLOGIE:

1. What to look forward to in 2019 [en]
     [Japonia va anunța dacă va accepta construirea International Linear Collider (ILC) pe teritoriul său. SpaceX va efectua o lansare de test a capsulei Crew Dragon. Terapia cu protoni se va extinde. Calculatoarele cuantice vor intra pe piață.]

2. AI's failure to live up to the hype is starting to put off investors [en]
     [Investițiile în companiile de inteligență artificială vor scădea dramatic pentru că inteligența artificială este dificil de implementat în multe dintre proiectele în derulare. Mașinile autonome sunt un bun exemplu.]

3. Beneficiile și riscurile inteligenței artificiale [ro]
     [Inteligenţa artificială (AI) a ajuns în ultimii ani un subiect de controverse, pe de-o parte plasându-se cei care consideră că viitorul le aparţine oamenilor, care, cu ajutorul inteligenţei artificiale, vor ajunge să rezolve toate enigmele universului, asigurându-şi chiar nemurirea, iar de cealaltă parte se află cei care avertizează cu privire la pericolul "trezirii" unei superconştiinţe artificiale, care ar putea ajunge să fie animată de propriile scopuri, iar proliferarea speciei umane ar putea să nu fie unul dintre aceste scopuri.]

Harta lumii în funcţie de mărimea populaţiei fiecărei ţări.
Clic pe hartă pentru a accesa dimensiunea maximă a acesteia.


¦
 ŞTIINŢĂ ŞI TEHNOLOGIE:

1. How many calories are in your drink? [en]
     [Alcohol can be a "hidden" source of calories — you may have a glass of wine (or two) with dinner, or champagne to ring in the New Year, without thinking about the extra calories you're consuming.]

2. Childhood's End - The digital revolution isn’t over but has turned into something else [en]
     [The next revolution will be the ascent of analog systems over which the dominion of digital programming comes to an end. Nature’s answer to those who sought to control nature through programmable machines is to allow us to build machines whose nature is beyond programmable control.]

31 dec 2018: Suntem 7,5 miliarde de oameni pe Terra!



¦
ŞTIINŢĂ ŞI TEHNOLOGIE:

1. O sondă NASA va fotografia corpul ceresc Ultima Thule în noaptea de Revelion [ro]
     [O sondă NASA se apropie în mare viteză de Ultima Thule, un corp ceresc aflat la 6,4 miliarde de kilometri de Terra, cel mai îndepărtat obiectiv studiat vreodată, pe care se preconizează că-l va fotografia în noaptea de Revelion, cu prilejul unui survol care implică riscuri semnificative.]

2. Do Merging Black Holes Create An Information-Loss Paradox? [en]
     [Do merging black holes lose information? They absolutely must, according to General Relativity and the known laws of physics. Take two black holes, merge them together, and they lose mass.]



¦
 ŞTIINŢĂ ŞI TEHNOLOGIE:

1. Bill Gates' thoughts on 2018 and his resolution for 2019 [en]
     [I am committing to learn and think about two key areas where technology has the potential to make an enormous impact on the quality of our lives: the balance between privacy and innovation and the use of technology in education (how much can software improve students’ learning?)]

2. Current Trends in Deep Learning [en]
     [Practical applications of AI, optimization and interpretability of deep learning models and reinforcement learning (RL), based on the 2018 REWORK Deep Learning Summit in Toronto. ]



» ŞTIINŢĂ ŞI TEHNOLOGIE:

1. Autonomous train is the world's largest robot [en]
     [An autonomous rail system called AutoHaul that it’s been developing in the remote Pilbara region of Australia for several years is now entirely operational — an accomplishment the company says makes the system the “world’s largest robot.”]

2. Vulcanul Anak Krakatoa a pierdut două treimi din înălţime şi până la trei sferturi din volum [ro]
     [Centrul pentru vulcanologie şi gestionarea dezastrelor geologice (PVMBG) din Indonezia a precizat sămbătă că înălţimea vulcanului este acum de 110 metri deasupra nivelului mării, în scădere cu 228 de metri.]

» ŞTIINŢĂ ŞI TEHNOLOGIE:

1. 10 most intriguing inventions of 2018 [en]
     [From programmable pills to power-generating boots, here are some of the most unusual technological innovations of this year.]

2. What's coming in smartphones in 2019? [en]
     [From the launch of 5G to phones with large folding screens, more cameras and fingerprint scanners under the screens, 2019 looks set to transform the smartphone in more ways than one.]

 ŞTIINŢĂ ŞI TEHNOLOGIE

1. A single personality trait is the foundation for almost all mental illness [en]
     [Neuroticism seems to be the personality trait that best describes the risk of all mental disorders.]

2. The famous Stanford Prison Experiment was a sham [en]
     [The appeal of the Stanford prison experiment seems to go deeper than its scientific validity, perhaps because it tells us a story about ourselves that we desperately want to believe: that we, as individuals, cannot really be held accountable for the sometimes reprehensible things we do.]

File 20180620 137714 1dcd549.jpg?ixlib=rb 1.1
Increasing the amount of exercise is one way to use the energy stored in fat cells, or to ‘burn’ fat. HoonQ/Shutterstock.com

David Prologo, Emory University

Many of us may be considering “burning some fat” so we feel better in our bathing suits out on the beach or at the pool. What does that actually mean, though?

The normal fat cell exists primarily to store energy. The body will expand the number of fat cells and the size of fat cells to accommodate excess energy from high-calorie foods. It will even go so far as to start depositing fat cells on our muscles, liver and other organs to create space to store all this extra energy from calorie-rich diets – especially when combined with a low activity lifestyle.

Publicam acest prim articol dedicat primei lansări a Falcon Heavy, la câteva zile de la acest eveniment (Falcon Heavy a fost lansată pe 6 februarie a.c.), încercând să depăşim euforia de moment ce a fost trăită la nivel planetar şi să vedem, la rece, ce înseamnă acest zbor pentru industria spaţială. Nu este un articol uşor, de genul celor cu care presa v-a obișnuit, dimpotrivă, însă credem că aduce o perspectivă ce merită luată în considerare.

File 20180118 158528 1c066zd.jpg?ixlib=rb 1.1
A fly’s eye view of a rapidly approaching swatter. Cameron Webb (NSW Health Pathology), Author provided

Cameron Webb, University of Sydney and Bryan Lessard, CSIRO

Summer in Australia is defined by sport, but the most-played sport isn’t cricket or tennis – it’s fly swatting. Have you ever tried to swat a fly? You can swipe, slap, slash or swoosh your hands at these sometimes-annoying backyard pests and almost always miss.

Fly swatting is as challenging a sport you’ll face this summer, but why is it so hard to squish these little beasts?


By Chelsea Gohd

In Brief

After showing remarkable results in animal models, a new localized immunotherapy that targets the tumor with a simple injection is ready to enter clinical trials.

by Elise Crull

In the summer of 1935, the physicists Albert Einstein and Erwin Schrödinger engaged in a rich, multifaceted and sometimes fretful correspondence about the implications of the new theory of quantum mechanics. The focus of their worry was what Schrödinger later dubbed entanglement: the inability to describe two quantum systems or particles independently, after they have interacted.

Două maimuţe au păşit pe urmele oii Dolly, clonate în 1996, şi au devenit primele primate care au fost clonate în urma transferului de ADN. Cele două exemplare identice de macac cu coadă lungă, Zhong Zhong şi Hua Hua, s-au născut în urmă cu opt săptămâni, respectiv şase săptămâni într-un laborator din China. Succesul cercetătorilor chinez marchează un moment semnificativ în cercetarea privind clonarea. Studiul privind clonarea maimuțelor a fost publicat în revista Cell.


În imagine: nori groşi de praf ce blochează observarea Căii Lactee. Credit: NASA

Proiectul de cercetare "Dark Energy Survey" a descoperit recent 11 "curenţi stelari" în Calea Lactee. Curenţii stelari (eng. stellar streams) sunt grupări de stele aparţinând în trecut unor alte galaxii sau unor clustere de stele din apropierea galaxiei noastre. Găsirea și înțelegerea acestor curenţi stelari ne-ar putea ajuta să înțelegem mai bine originile Căii Lactee și distribuția materiei întunecate.

File 20180112 101514 o1dufb.jpg?ixlib=rb 1.1
The comet 67P/Churyumov-Gerasimenko, seen up close. ESA/Rosetta/NavCam, CC BY-SA

Donia Baklouti, Université Paris Sud – Université Paris-Saclay; Anaïs Bardyn, Carnegie Science, and Hervé Cottin, Université Paris-Est Créteil Val de Marne (UPEC)

We are not used to considering dust as a valuable material – unless it comes from space. And more precisely, from the comet 67P/Churyumov-Gerasimenko. An analysis of its dust has provided valuable information about this celestial object, and, more generally, on the history of the Solar System.

Using the COSIMA instrument aboard the European space probe Rosetta, a scientific team scrutinised the comet 67P/Churyumov-Gerasimenko (67P) in great detail from August 2014 to September 2016. They were interested in the dust particles ejected from the comet’s nucleus and captured by the spacecraft, and COSIMA made it possible to study their composition. The results of their research were published in December 2017 by the Royal Astronomical Society.

The study indicates that, on average, half of the mass of each dust particle consists of carbonaceous material with a mainly macromolecular organic structure; the other half being mostly composed of non-hydrated silicate minerals.

How is this result important or interesting? What does it imply? Was it expected by scientists or is it a total break pre-existing theories?


 


Ne poți ajuta cu o donaţie.


PayPal ()


Contact
| T&C | © 2020 Scientia.ro