Category: Technology

This huge railway canyon was the largest weapon in history

At the site in Sevastopol, in the USSR (today, Ukraine), in July 1942, the German army used an 80 cm caliber weapon, incorporating a 32.5 meter long cannon. Never had such a large weapon been built, nor has its mark ever been exceeded. It is the K (E) Gustav Gerät canyon, also known as the Dora canyon, and was an immense long-range railway canyon.
Facebook knows how many times you have searched your ex-partner's profile (but you can delete that information)
Facebook knows how many times you have searched your ex-partner's profile (but you can delete that information)
Facebook is being forced to explain how much information it collects about us and for what. After thousands of questions from the Senate and the US Chamber, we have a 225-page document that includes these questions and the company's answers, presented a couple of months ago.
The way we learn in school could change thanks to China and Artificial Intelligence
The way we learn in school could change thanks to China and Artificial Intelligence
For the first time in history, knowledge can be provided in a personalized way for each student. An education tailored to the needs, learning style and type of intelligence of the student. But things have not changed much in schools because they are governed by 19th century rules with 20th century teachers.
Vegan burgers satisfy more (men) than meat burgers
Vegan burgers satisfy more (men) than meat burgers
The production of meatless hamburgers requires 99% less water, 93% less land, 90% less greenhouse gas emissions, almost 50% less energy. And, in addition, it satisfies more. This is what a recent 2018 study suggests that compared the physiological responses of men after eating meat and plant-based hamburgers.
This membrane made of porous wood can filter seawater with extraordinary simplicity
This membrane made of porous wood can filter seawater with extraordinary simplicity
Filtering seawater salt may require a lot of energy or specialized engineering, but a thin membrane made of porous wood can fix that. In membrane distillation, salt water is pumped through a film, usually made of some type of polymer with very narrow pores that filter the salt and let only water molecules pass through.
With this laser you can be identified thanks to your heart rate 200 meters away
With this laser you can be identified thanks to your heart rate 200 meters away
The Pentagon has a laser that can identify people at a distance, by the beat of their heart. Thus, you can detect your unique heart signature 200 meters away, even through clothing. At the biometric level, the cardiac signature of an individual is unique and, unlike faces or other biometric signs, it remains constant and cannot be altered or concealed.
See how this artificial muscle is capable of lifting its own weight 1000 times
See how this artificial muscle is capable of lifting its own weight 1000 times
In order for the new fibers to be used in prostheses, robots, exoskeletons and even clothing, three teams of researchers have developed artificial muscles that can lift 1000 times their own weight. The muscles have all been developed according to a similar principle: that a rolled substance can stretch like a muscle.
This Artificial Intelligence knows what gestures you are doing just by hearing your voice
This Artificial Intelligence knows what gestures you are doing just by hearing your voice
One of the problems of talking on the phone is that we cannot see all the nonverbal language of our interlocutor. His hand gestures, how he opens his eyes, or how he shakes them, or how he raises an eyebrow with skepticism, or if he smiles or not. We humans can deduce it, of course. However, this artificial intelligence is capable of doing better, and they have tried it with several people, including celebrities of American television.
These were the first people who died in the first means of transport in history
These were the first people who died in the first means of transport in history
In 1900, in New York City alone, horse accidents killed 200 citizens, 1 in 17,000 inhabitants. Not surprisingly, the horse was the means of transport that caused most problems to mankind. The arrival of technology allowed horses to be replaced by other means of transport that were safer and more efficient, and also caused fewer environmental problems.
This plane flies without moving parts and is completely silent
This plane flies without moving parts and is completely silent
Researchers at the Massachusetts Institute of Technology (MIT) have developed a plane that can fly without the help of heavy machinery, using only lithium batteries and electricity to move the air in silence. It is small, yes: wingspan of 5 meters and mass of 2.5 kg. While it can "slip" it is not a mere "glider" and can invoke its own wind to fly.
Plastics and ecological fuels produced by nano-organisms that work with light and consume carbon dioxide
Plastics and ecological fuels produced by nano-organisms that work with light and consume carbon dioxide
A group of researchers from the University of Colorado at Boulder have developed nanobio-hybrid organisms capable of using carbon dioxide and nitrogen in the air to produce a variety of plastics and fuels. By using light-activated quantum dots (which are tiny semiconductors similar to those used in televisions) to shoot particular enzymes within microbial cells, they were able to devise "living factories" that consume harmful CO2 and convert it into useful products such as plastic biodegradable, gasoline, ammonia and biodiesel.
The disproportionate power of concentration of the economic sectors in only a handful of companies
The disproportionate power of concentration of the economic sectors in only a handful of companies
Large companies (and very few of them, in reality) have been the most efficient means of organizing mass production and distribution of goods and services. The union of supply chains, production processes and distribution channels, then, are in very few hands, specifically in vertically integrated companies.
Right now in your pocket (or in your hand) there are 70 different elements of the periodic table: what do you have?
Right now in your pocket (or in your hand) there are 70 different elements of the periodic table: what do you have?
Rare is that in our hand or in our pocket there are 70 different elements of the periodic table. That happens because we live together with the smartphone, and a smartphone works thanks to that unimaginable amount of elements. Among the metals that our smartphone houses are copper, nickel, tin, cobalt, Indian, antimony, gold, silver, palladium ... Electronic properties All these elements are used in the construction of our portable devices because they possess very important electronic properties, or for the tiny and powerful magnets that are used in the speaker and in the vibration motor.
Something important for us to start trusting autonomous cars: to show feedback like humans
Something important for us to start trusting autonomous cars: to show feedback like humans
Perhaps, in a short time, we will discover and collectively assume that autonomous cars are much safer than human-driven cars. However, until that time comes, we will have to take intermediate steps to help people not feel uncomfortable or tense.
NASA funds a cryogenic hydrogen system to propel fully electric airplanes
NASA funds a cryogenic hydrogen system to propel fully electric airplanes
Advances in engine systems have increased the efficiency of flights over the past decades, but the dependence on fossil fuels keeps airplanes contributing to greenhouse gas emissions. To solve this problem, NASA, together with specialists from the University of Illinois, proposes the idea of ​​the use of sustainable energy sources instead of fossil fuels for commercial aircraft, based on the introduction of cryogenic hydrogene.
So we have changed screens over 70 years
So we have changed screens over 70 years
We often go over alarmist when a new technology appears. Now it has touched the screens (mobile, tablet, basically), to which we assign all kinds of negative aspects: that if the blue light, that if we hypnotize, that if we spend too much time looking at them, etc. These are questions that, one by one, should be investigated little by little, but that, ironically, do not differ much from the criticisms that were poured towards television and, even further back, towards books.
When patents democratized the world of technological innovation
When patents democratized the world of technological innovation
During the 19th century, the United States became the most innovative country in the world in the technological and economic field thanks to the patent system, which protected the property rights of ideas. This, in turn, allowed people who started from an unfavorable social and economic economic situation, using exclusively the power of their good ideas, to escalate in an unprecedented way in the history of mankind.
Companies do not need to spy on your conversations through the microphone of your phone to sell you things
Companies do not need to spy on your conversations through the microphone of your phone to sell you things
It usually happens that, after having had a conversation with someone on the subject of a movie, book or even any other topic, soon an ad will appear on our social networks precisely about it. Immediately, our favorite conspiracy theory is launched: they are spying on our conversations, both online and offline, to endorse us with marketable products.
Are we about to eradicate the extreme poverty of the world?
Are we about to eradicate the extreme poverty of the world?
As Peter H. Diamandis and Steven Kotler write in their book Abundance, "technology is a mechanism of resource liberation. It can turn what was once scarce into abundant." That has been going on since the industrial revolution, which turned agriculture into a much more affordable source of calories for more and more people.
Electricity thanks to snow thanks to this nanogenerator
Electricity thanks to snow thanks to this nanogenerator
Approximately 30 percent of the Earth's surface is covered with snow every winter, during which solar panels often do not work. Now imagine a device that can work in remote areas because it provides its own energy and does not need batteries and that does it thanks to snow.
It is confirmed thanks to big data that prohibiting abortion increases unsafe abortion
It is confirmed thanks to big data that prohibiting abortion increases unsafe abortion
Beyond the debates that we could establish around abortion (which in short is about discussing where we put an arbitrary border line that swings between moral disgust, objective scientific information and pragmatism), which is confirmed once again that it is When it is difficult to legally abort, women look for other ways to do it.