science, Technical knowledge, Technology

NASA releases first audio from Mars, video of Perseverance rover landing

Justin Maki, NASA Perservere imaging scientist and instrument operations team chief, reveals a full panorama the rover captured from the surface of Mars

The video clip showed the deployment of the parachute and the rover’s touchdown on the surface of the Red Planet

The U.S. space agency NASA on Monday released the first audio from Mars, a faint crackling recording of a gust of wind captured by the Perseverance rover

NASA also released the first video of last week’s landing of the rover, which is on a mission to search for signs of past life on the Red Planet.

A microphone did not work during the rover’s descent to the surface, but it was able to capture audio once it landed on Mars.

NASA engineers played a 60-second recording

What you hear there 10 seconds in is an actual wind gust on the surface of Mars picked up by the microphone and sent back to us here on Earth,” said Dave Gruel, lead engineer for the camera and microphone system on Perseverance.

The high-definition video clip, lasting three minutes and 25 seconds, shows the deployment of a red-and-white parachute with a 70.5-foot-wide (21.5-meter-wide) canopy.

It shows the heat shield dropping away after protecting Perseverance during its entry into the Martian atmosphere and the rover’s touchdown in a cloud of dust in the Jezero Crater just north of the Red Planet’s equator.

“This is the first time we’ve ever been able to capture an event like the landing on Mars,” said Michael Watkins, director of NASA’s Jet Propulsion Laboratory, which is managing the mission.

“These are really amazing videos,” Mr. Watkins said. “We binge-watched them all weekend.”

Thomas Zurbuchen, NASA’s associate administrator for science, said the video of Perseverance’s descent is “the closest you can get to landing on Mars without putting on a pressure suit.”

Perseverance is healthy’
Jessica Samuels, Perseverance’s surface mission manager, said the rover was operating as expected so far and engineers were conducting an intensive check of its systems and instruments.


“I am happy to report that Perseverance is healthy and is continuing with activities as we have been planning them,” Ms. Samuels said.

She said the team was preparing for a flight by the rover’s small helicopter drone dubbed Ingenuity.

“The team is still evaluating,” she said. “We have not locked in a site yet.”

Ingenuity will attempt the first powered flight on another planet and will have to achieve lift in an atmosphere that is just one percent the density of Earth’s.


Perseverance was launched on July 30, 2020 and landed on the surface of Mars on Thursday.

Its prime mission will last just over two years but it is likely to remain operational well beyond that. Its predecessor Curiosity is still functioning eight years after landing on Mars.

Over the coming years, Perseverance will attempt to collect 30 rock and soil samples in sealed tubes to be sent back to Earth sometime in the 2030s for lab analysis.


About the size of an SUV, the craft weighs a ton, is equipped with a seven-foot-long robotic arm, has 19 cameras, two microphones and a suite of cutting-edge instruments.

Mars was warmer and wetter in its distant past, and while previous exploration has determined the planet was habitable, Perseverance is tasked with determining whether it was actually inhabited.

It will begin drilling its first samples in summer, and along the way it will deploy new instruments to scan for organic matter, map chemical composition and zap rocks with a laser to study the vapor.


One experiment involves an instrument that can convert oxygen from Mars’ primarily carbon dioxide atmosphere, much like a plant.

The idea is that humans eventually won’t need to carry their own oxygen on hypothetical future trips, which is crucial for rocket fuel as well as for breathing.


The rover is only the fifth to set its wheels down on Mars. The feat was first accomplished in 1997, and all of them have been American.


The United States is preparing for an eventual human mission to the planet, though planning remains very preliminary.

Posted by Technical Mechzone

earn money, Technology, trading

Govt committee recommends ban all cryptocurrencies, except those issued by state: FM

*The central government will take a decision on the recommendation of committee and legislative proposal, says FM
*A cryptocurrency bill is being finalised and it will be sent to cabinet soon, minister of state for finance Anurag Singh

A high-level committee suggested that all the private cryptocurrencies, except any virtual currencies issued by state, will be prohibited in India, finance minister Nirmala Sitharaman said on Tuesday.

In a reply to a question in Rajya Sabha whether central government is planning to issue strict guidelines on cryptocurrency trading, Sitharaman said, “A high-level Inter-Ministerial Committee (IMC) constituted under the Chairmanship of Secretary (Economic Affairs) to study the issues related to virtual currencies and propose specific actions to be taken in the matter recommended in its report that all private cryptocurrencies, except any virtual currencies issued by state, will be prohibited in India.”

The central government will take a decision on the recommendation of IMC and legislative proposal, if any would be introduced in the Parliament following the due process,” finance minister added. In 2018, the Reserve Bank of India had banned banks from processing transactions relating to cryptocurrency. In in March 2020, Supreme Court overturned the ban.

Reiterating the govt’s stance on Bitcoin, the finance minister said, “It was announced in the Budget Speech for 2018-19 that the government does not consider cryptocurrencies legal tender or coins and will take all measures to eliminate use of these crypto-assets in financing illegitimate activities or as part of the payment system.” “The government will explore use of block chain technology proactively for ushering in digital economy,” it further said.
The central government will take a decision on the recommendation of committee and legislative proposal, says FM
A cryptocurrency bill is being finalised and it will be sent to cabinet soon, minister of state for finance Anurag Singh Thakur said

A high-level committee suggested that all the private cryptocurrencies, except any virtual currencies issued by state, will be prohibited in India, finance minister Nirmala Sitharaman said on Tuesday.

In a reply to a question in Rajya Sabha whether central government is planning to issue strict guidelines on cryptocurrency trading, Sitharaman said, “A high-level Inter-Ministerial Committee (IMC) constituted under the Chairmanship of Secretary (Economic Affairs) to study the issues related to virtual currencies and propose specific actions to be taken in the matter recommended in its report that all private cryptocurrencies, except any virtual currencies issued by state, will be prohibited in India.”

“The central government will take a decision on the recommendation of IMC and legislative proposal, if any would be introduced in the Parliament following the due process,” finance minister added. In 2018, the Reserve Bank of India had banned banks from processing transactions relating to cryptocurrency. In in March 2020, Supreme Court overturned the ban.

Reiterating the govt’s stance on Bitcoin, the finance minister said, “It was announced in the Budget Speech for 2018-19 that the government does not consider cryptocurrencies legal tender or coins and will take all measures to eliminate use of these crypto-assets in financing illegitimate activities or as part of the payment system.” “The government will explore use of block chain technology proactively for ushering in digital economy,” it further said.


A cryptocurrency bill is being finalised and it will be sent to cabinet soon, minister of state for finance Anurag Singh Thakur said earlier. “Regulatory bodies like RBI and Sebi etc also don’t have a legal framework to directly regulate cryptocurrencies as they are neither currencies nor assets or securities or commodities issued by an identifiable user. The existing laws are inadequate to deal with the subject. The government had formed an inter ministerial committee and the committee has given a report. Post that there was a meeting of the empowered technology group which happened earlier. The committee of secretaries which was chaired by the cabinet secretary has also its given their report. The bill is being finalised and will be sent to the cabinet soon. So we will be bringing the bill soon,” Thakur said.


Earlier this month, the Reserve Bank of India (RBI) said that it has plans to bring a digital version of the Indian Rupee. The central bank “was exploring the possibility as to whether there was a need for a digital version of fiat currency, and in case there was then how to operationalise it,” it mentioned.


Posted by Technical Mechzone

nature, earth, environment, science, Technical knowledge, Technology

There is a way to go to the black hole, but it is not possible to come back ‘!!!!!!!!!!!!!!

Two physicists have figured out the conditions necessary to enter the black hole. Black holes are so mysterious that scientists are very keen to know about them. Scientists say that going to a black hole would be a one-way trip, because if the light could also come out from the black hole, then it is useless to predict the possibility of a human coming out. Small black holes do not rotate and the radius of their event horizon is very low. This is the place, after which nothing comes back.

An event horizon means that the event horizon is a boundary beyond which the events beyond it cannot have any effect on the universe outside its boundary, nor can any person sitting outside its boundary know what is beyond the boundary. Used to be.

Here the effect of gravity is very high. Apart from this, the radius of the event horizon of the second massive black hole is 7.3 lakh miles. There is a difference of thousands of billion times in gravity between the center of both and the event horizon. If a star-related object crosses the black hole’s event horizon, it undergoes a process of sphagatification.
Sphagetification is the process by which (in some theories) an object falling into a black hole will be separated or ripped off by gravitational forces. In this, every molecule of its body is pulled by a long strand. This happens because the gravity at one point in space time is much higher than the other point. When this happens, it is impossible to survive in a black hole.

However, if a person falls into a massive black hole, he will be in freefall and there will not be spaghettification. The reason behind this is that the distance between the black hole from the event horizon is much more.

Posted by Technical Mechzone

Technical knowledge, Technology

WhatsApp beta for Android 2.21.3.13: what’s new?

WhatsApp has just submitted a new update through the Google Play Beta Program, bringing the version up to 2.21.3.13.
What’s new in this update? Discover all details below!

Common questions. Answers
Name of the feature? Mention badge
Status? Under development
Availability? In a future update.
I’ve the same version but I don’t see this news, why?
:. It’s not available yet, but you can see here a preview of the feature, for a future build.
News about iOS? No news yet.

Mention badge
After several updates that addressed bug fixes and general improvements, WhatsApp has released today the 2.21.3.13 beta update. It has nothing new apparently, but we can show today a preview of the feature they’re working on in this build: the mention badge!
The feature is very simple to explain: when you receive a mention in a group, a new badge will be added in the group cell:


This feature is under development and it will be available in a future update.

Taters N Tots
WhatsApp has recently released a new animated sticker pack called Taters n tots, available for previous versions too.

Posted by Technical Mechzone