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Showing posts from September 30, 2018

Do real Flying Cars exist Today?

Since the onset of the 20th century when automobiles and airplanes were both invented almost simultaneously, talk of building a flying car began almost immediately. 

Though the concept seems simple at the time, each attempt ended in failure, still the dream was unshakable. 

The 1960s featured a flying car in the movie Chitty Chitty Bang Bang, followed soon after by the futuristic Jetsons cartoon where George Jetson flew his vehicle to work every day the 70s and. 80s gave us more with Star Wars back to the future. now they're finally here

What is that is it a three-wheeled motorcycle no it's a helicopter and a flying car, it's the sleek and stylish pal v1, an amazing car and gyroplane hybrid from Dutch company pal V. on the road the two passenger pal V performs like a sports car accelerating from zero to 60 in just eight seconds. 

Leaning into turns like a well engineered motorcycle, and it's an off the chart driving experience. switching to airplane is surprisingly easy, w…

How can Astronomers Tell That the Universe is Expanding and Accelerating?

once you know the universe is expanding, you might wonder if it’s going to keep expanding somehow, or eventually stop and crunch in on itself because of the attractive force of gravity. 

Well, all you have to do is point your telescope at a distant galaxy, measure how fast it’s moving away from us, wait about a million years, and then do the same thing again to see if the galaxy is moving faster or slower than before.

But if you don’t have a million years to spare, here’s what you do. You look at different galaxies. Because light takes time to reach us, when we look at a galaxy far, far away, we see it as it was a long time ago. 

So looking at a bunch of galaxies different distances away is kind of a rough proxy for looking at the same one at different times. 

The light from the stars in a distant galaxy can tell us two basic things. First, its speed: light from anything moving away from you becomes redder in color (kinda like how police sirens get lower in pitch when moving away).
This r…

Stop Scratching! You are Making The itch much worse

Ever been nibbled by a mosquito, a blood sucker, or an arachnid? you most likely know the feel of an itching really good. 
For most people their automatic reaction is to scratch the area oh! that nice, awesome feeling of immediate relief, now you start to scratch again, and then it gets itchy over again, scientists call this the itch-scratch cycle. 

Scientists thought that an itch is just a like some kind of pain caused by irritation in the skin cells now, we know that their are itch-specific receptors that activate itch signals. 

Scientist can see an overlap in the nerves that transmit signals.

The sharp sensation of your nails on your skin stimulates certain pain receptors, and that sends pain signals to your brain that overwhelm the itch ones. scratching distracts your brain for a second. once pain signals come in, the brain responds by releasing the neurotransmitter serotonin to dull them.

Serotonin is best known as the happiness chemical, but it does various things throughout the body…

2018 Nobel Prize for Medicine awarded to James Allison and Tasuku Honjo for Discovering a Cancer Therapy

The 2018 Nobel Prize for medicine has been jointly awarded to James Allison of the University of Texas and Tasuku Honjo of Kyoto University, for discovering a cancer therapy that involves our immune system to attack tumors.

Their game-changing discoveries in cancer treatment involve harnessing and manipulating the immune system to fight cancer. 

"The seminal discoveries by the two laureates constitutes a paradigmatic shift and a landmark in the fight against cancer." 

They are the first Nobel Prize winners of the year, as medicine or physiology is the first of five categories to be given out this week. 

Their discoveries have created a billion-dollar market for new cancer medicines, especially offering new options for patients fighting against melanoma, lung and bladder cancers.
immunotherapy is going to be part, it's not going to replace all those others, but it's going to be part of the therapy that essentially all cancer patients are going to receive, be receiving in …

Why is it so difficult to Send a Spacecraft to the sun

NASA's Parker Solar Probe will soon fly closer to the Sun than any spacecraft before it-about 4 million miles from the visible surface. But getting that close to the Sun requires some fancy orbital mechanics. 
It takes 55 times more energy to go to the Sun than it does to go to Mars. Why is it so hard to get to the Sun?  

The answer is related to why Earth doesn't just fall straight into the Sun, despite the strong gravitational attraction. 

Earth, and everything on it, is traveling very fast-about 67,000 miles per hour-in a direction that is basically always sideways relative to the Sun. 

If you launch a rocket from Earth, straight toward the Sun, it won't lose that sideways speed, and so it will miss the Sun. 
The only way to get the rocket to go right into the Sun is to cancel all that sideways motion. Leave even a little bit and it will miss the Sun and enter a new orbit. To cancel Earth's motion, you have to launch the spacecraft backward as fast as Earth is hurtling …

How did we tell Time before Clocks were invented?

We check the time every day, all day long. But did you ever wonder - where did telling time come from? Why does it matter what time it is? Who determined the clock and why in the world are there so many different time zones?

The first form of telling time was the sundial and the earliest sundials known from the archaeological record are obelisks from nearly 5,000 years ago. Sundials indicate the time by casting a shadow onto a surface. 

The object that casts the shadow is a stick in the center known as a gnomon. A well-constructed sundial can measure time with remarkable accuracy, and sundials were used to monitor the performance of clocks until the modern era. 

But sundials have their limitations too. Obviously they require the sun to shine, so they don't work at all during the night when it's dark. 

Many different devices have been used over the years to estimate the passage of time: candles and sticks of incense that burn down at fairly predictable speeds have been used, alon…

What Materials are Smartphones made of The story behind Making Cell Phones

Gold, silver, and copper are actually just a few of the 70 or so chemical elements that make up the average smartphone. 

These can be divided into different groups, two of the most critical being rare earth elements and precious metals. 

Rare earths are a selection of 17 elements that are actually common in Earth’s crust and are found in many areas across the world in low concentrations. 

These elements have a huge range of magnetic, phosphorescent, and conductive properties that make them crucial to modern technologies. 

In fact, of the 17 types of rare earth metals, phones and other electronics may contain up to 16. In smartphones, these create the screen and color display, aid conductivity, and produce the signature vibrations, amongst other things.

And yet, crucial as they are, extracting these elements from the earth is linked to some disturbing environmental impacts. 

Rare earth elements can often be found, but in many areas, it’s not economically feasible to extract them due to low …

Popular posts from this blog

"Very high at the global level." WHO has changed the risk assessment for coronavirus COVID-19.

The Director-General of the World Health Organization, Tedros Adhanom Ghebreyesus, announced that the risk assessment of coronavirus at the global level has been raised to "very high". This was reported on Friday.

LIVE daily media briefing on #COVID19 with @DrTedros#coronavirus — World Health Organization (WHO) (@WHO) February 28, 2020

We have raised our assessment of the risk of spread and impact of COVID-19 to a very high level at the global level, he said during a press conference that was broadcast on Twitter by the organization.

The full briefing on #COVID19 by @DrTedros — World Health Organization (WHO) (@WHO) February 28, 2020
Chinese authorities told WHO in late December 2019 about an outbreak of unknown pneumonia in the city of Wuhan in central Hubei province. 

🔹 Specialists found that the pathogen is a new type of coronavirus. 

WHO recognized the outbreak as an emergency of international importance an…

Mexico Confirms First Coronavirus Infection | COVID-19 SARS-Cov-2 Update

Mexican Assistant Secretary of Health Hugo Lopez-Gatell reported the first case of infection with the new coronavirus COVID-19 in the country.

According to the Health Department, the virus was diagnosed in a 35-year-old man, who was in Italy from February 14 to 22. At the moment he is in isolation in one of the hospitals, his condition is stable.

The Chinese coronavirus continues to spread rapidly around the world. The number of infected people has exceeded 78.8 thousand in China itself, 2.3 thousand in South Korea, 388 in Iran and 650 in Italy. 

In the last 24 hours, the first cases of infection have been detected in the Netherlands, Nigeria, Lithuania, Belarus, New Zealand and Azerbaijan.

Undersecretary of Health, Hugo Lopez-Gatell, reported that the person infected by Covid-19 is in CDMX; they are waiting for a second test for another person in Sinaloa

Undersecretary of Health Hugo Lopez-Gatell confirmed the first case imported into Mexico of coronavirus, which is called Covid-19.


SpaceX wants to send three tourists to the ISS

The US space company SpaceX wants to send three tourists to the International Space Station ISS.

It is planned that the tourists will travel to the ISS in the second half of 2021 together with a commander in the "Crew Dragon" space capsule, as the Texas start-up Axiom - SpaceX's partner company in the project - announced on Thursday.Neither of the two companies gave any indication of how much the tourists would probably have to pay for the trip. 

The costs for the launch of the Falcon 9 rocket alone, which will transport the space capsule into space, amount to around 60 million dollars (53 million euros).

In addition, the construction of a new "Crew Dragon" capsule must be financed.

🔹 In this respect, the ticket for the flight should cost tens of millions of dollars.

In earlier years, a total of eight tourists had already travelled to the ISS in Russian Soyuz capsules. 

The first was US entrepreneur Dennis Tito in 2001, who paid 20 million dollars for a vacati…

A new species of insect was named after Lady Gaga for being eccentric. | Kaikaia gaga

Insect was named after Lady GagaBrendan Morris, PhD at the University of Illinois, observed the behavior of about a thousand treehoppers for his research project when he suddenly noticed one female who was different from the others.

Scientists decided to name the recently discovered insect in honor of Lady Gaga for their "eccentric sense of style," NME reports.

In the scientific publication Zootaxa, he and his co-author, the entomologist Christopher Dietrich, wrote about it "an additional cross m-cu (between the fourth and fifth longitudinal veins) in the front wing, as well as a frontal-clipella form".

Morris decided to call the insect "Kaikaia gaga" so that specialists could understand what kind of species we are talking about.

"If there ever is a Lady Gaga bug, it will definitely be a treehopper bug because of its crazy horns and eccentric sense of style. They don't look like anything you've seen before," he explained.

Now Morris hopes…

How the lungs of a person suffering from Coronavirus look | Photos

Chinese doctors have published an x-ray of the lungs of a patient with the coronavirus 2019-nCoV that has spread through China and other countries.

The images published by Chinese doctors are of a 33-year-old woman who entered the hospital after presenting symptoms such as fever and cough for five days.
CT Imaging of the 2019 Novel Coronavirus (2019-nCoV) Pneumonia. …

At the time of the woman's admission, doctors noted that her body temperature had risen to 39°C and heard the sounds of her breathing were harsh in both lungs.

Doctors examine the patient for coronavirusAccording to the results of the studies published in the journal Radiology, the patient had a clear deficiency of white blood cells, as well as multiple peripheral opacities in ground-glass in both lungs.
The outbreak of coronavirus that has put the whole world on alert because of its spread in several countries emerged in the Chinese city of Wuhan at the end of December …

Chinese and US scientists found new methods for virus detection

Two medRxiv articles on the same day: A new method to detect viruses has been found by Chinese as well as other scientists, which can be tested on-site, with results within 45 minutes.

🔹 These methods are of great significance for the community and the general population to detect infection with the virus.
The new coronavirus (SARS-CoV-2 or 2019-nCoV) threatens global health, and although it is very similar to SARS-CoV, it is more contagious.
Existing RT-qPCR detection methods often require expensive equipment and trained professionals. Under these circumstances, it is urgent to develop a technique that is fast, accurate, and capable of detecting viruses in the field.
On February 25, preprint website medRxiv issued respectively by the Institute of Applied Biology, Shenyang University of Chemical Technology, Dr. Yin Xiushan team, and the American Royal Oak, Michigan Beaumont Michael B Chancellor team.

The study reports brought by Chinese and foreign scientists revealed reverse transcriptas…

The number of patients with coronavirus in the United States exceeded 60 people

The number of confirmed coronavirus cases in the U.S. has reached 62, the Center for Disease Control and Prevention (CDC) said Friday.
The CDC reported 34 cases last Friday. In 11 of them, those who had previously returned to the U.S. from abroad, and in two more cases coronavirus was transmitted from person to person in the United States.

In addition, 21 people were transported by State Department flights: three from Wuhan and 18 from the Diamond Princess ship from Japan.

According to the latest CDC data, of the 62 infected, 12 had previously returned to the United States from overseas trips. The number of human-to-human infections has increased to three.

The number of infected US citizens evacuated from the Diamond Princess has reached 44. The number of infected citizens coming from Chinese Wuhan remained the same.

On December 31, 2019, Chinese authorities informed the World Health Organization (WHO) about an outbreak of unknown pneumonia in Wuhan city in central Hubei province. Speciali…

Scientists propose to fight viruses with fullerenes

Fight viruses with fullerenes
Scientists from Skoltech and the Institute of Problems of Chemical Physics of the Russian Academy of Sciences have created water-soluble fullerene compounds that have valuable biological properties. The results of the study are published in the journal Chemical Communications. Thanks to this biological properties they can be used to develop effective antiviral drugs, including to suppress the human immunodeficiency virus (HIV).

Fullerenes are molecular compounds composed of three-coordinated carbon atoms, which are closed convex polyhedra. Depending on the number of atoms in the molecule, fullerenes resemble a soccer ball (C 60 ) or a rugby ball (C 70 ) in shape.

Compounds based on fullerenes have a pronounced antiviral, antibacterial, antitumor and antioxidant activity, so scientists have long viewed them as a promising basis for the creation of new drugs. Unfortunately, fullerenes are absolutely insoluble in water, which prevents their use in medicine.


Medications have positive results in research for the treatment of coronavirus; here are 4 possibilities

Medicine used against malaria for almost 100 years and others without approval in Brazil are among the most promising after tests.

Four drugs showed positive - but still preliminary - results in scientific research in the treatment of Covid-19, a disease caused by the new coronavirus. These drugs act at different stages of cell contamination. They are:

ChloroquineRemindLopinavir/RitonavirFavipiravirHowever, self-medication is not recommended, since research has not been fully completed and it is not yet known whether there are any side effects from use by patients infected with the coronavirus.
The study on Favipiravir was released on Wednesday (18) - it is sold commercially in Japan under the name Avigan. It was developed by Toyama Chemical, of the Fujifilm group, and has been used for over 5 years against Influenza. Its use is only authorized in Japan.
The medicine is being tested only in laboratories outside the country. When consulted, Anvisa informed that there is no request for re…

Coronavirus - Satellite Images Show Abandoned Places Worldwide

Whether China, Europe or the Middle East - the new type of corona virus is spreading everywhere.

Large events are canceled, crowds are avoided. Satellites have captured images of partially abandoned infections increase with the coronavirus. In particularly badly affected countries, public life comes to a standstill. Satellite images from the US space technology company Maxar show the extent of the epidemic in a before-and-after comparison.

The Al Haram Mosque in Mecca, Saudi Arabia is the largest mosque in the world - there is usually a huge crowd here. Source: VIA REUTERS