Astronomers have found a potential sign of life high in the atmosphere of Venus.
They hints there may be bizarre microbes living in the sulfuric acid-laden clouds of the hothouse planet, reports AP.
Two telescopes in Hawaii and Chile spotted the chemical signature of phosphine, a noxious gas that on Earth is only associated with life, in the thick Venusian clouds according to a study in Monday’s journal Nature Astronomy.
Several outside experts — and the study authors themselves — agreed this is tantalising but said it is far from the first proof of life on another planet.
They said it doesn't satisfy the “extraordinary claims require extraordinary evidence" standard established by the late Carl Sagan, who speculated about the possibility of life in the clouds of Venus in 1967.
“There is a distinct whiff of cordite in the air which may be suggesting something,” said study co-author David Clements, an Imperial College of London astrophysicist.
As astronomers plan for searches for life on planets outside our solar system, a major method is to look for chemical signatures that can only be made by biological processes, called biosignatures.
After three astronomers met in a bar in Hawaii, they decided to look at the closest planet to Earth: Venus. They searched for phosphine, which is three hydrogen atoms and a phosphorous atom.
On Earth, there are only two ways phosphine can be formed, study authors said. One is in an industrial process. The other way is as part of some kind of poorly understood function in animals and microbes. Some scientists consider it a waste product, others don't.
Phosphine is found in “ooze at the bottom of ponds, the guts of some creatures like badgers and perhaps most unpleasantly associated with piles of penguin guano,” Clements said.
Study co-author Sara Seager, an MIT planetary scientist, said researchers “exhaustively went through every possibility and ruled all of them out: volcanoes, lightning strikes, small meteorites falling into the atmosphere. ... Not a single process we looked at could produce phosphine in high enough quantities to explain our team’s findings.”
That leaves life.
The astronomers hypothesize a scenario for how life could exist on the inhospitable planet where temperatures on the surface are around 800 degrees (425 degrees Celsius) with no water.
“Venus is hell. Venus is kind of Earth’s evil twin,” Clements said. “Clearly something has gone wrong, very wrong, with Venus. It’s the victim of a runaway greenhouse effect.”
But that’s on the surface.
Seager said all the action may be 30 miles (50 kilometers) above ground in the thick carbon-dioxide layer cloud deck, where it's about room temperature or slightly warmer. It contains droplets with tiny amounts of water but mostly sulfuric acid that is a billion times more acidic than what’s found on Earth.
The phosphine could be coming from some kind of microbes, probably single-cell ones, inside those sulfuric acid droplets, living their entire lives in the 10-mile-deep (16-kilometer-deep) clouds, Seager and Clements said. When the droplets fall, the potential life probably dries out and could then get picked up in another drop and reanimate, they said.
Life is definitely a possibility, but more proof is needed, several outside scientists said.
Cornell University astronomer Lisa Kaltenegger said the idea of this being the signature of biology at work is exciting, but she said we don’t know enough about Venus to say life is the only explanation for the phosphine.
“I’m not skeptical, I’m hesitant,” said Justin Filiberto, a planetary geochemist at the Lunar and Planetary Institute in Houston who specializes in Venus and Mars and isn’t part of the study team.
Filiberto said the levels of phosphine found might be explained away by volcanoes. He said recent studies that were not taken into account in this latest research suggest that Venus may have far more active volcanoes than originally thought. But Clements said that explanation would make sense only if Venus were at least 200 times as volcanically active as Earth.
David Grinspoon, a Washington-based astrobiologist at the Planetary Science Institute who wrote a 1997 book suggesting Venus could harbor life, said the finding “almost seems too good to be true.”
“I’m excited, but I’m also cautious,” Grinspoon said. “We found an encouraging sign that demands we follow up.”
NASA hasn’t sent anything to Venus since 1989, though Russia, Europe and Japan have dispatched probes. The US space agency is considering two possible Venus missions.
One of them, called DAVINCI+, would go into the Venusian atmosphere as early as 2026.
Clements said his head tells him “it’s probably a 10 percent chance that it’s life,” but his heart "obviously wants it to be much bigger because it would be so exciting.”
Vivo, the Chinese multinational technology company, has announced discounts on purchase of its two smartphones of Y series, VIVO Y50 and VIVO Y91C.
The company said it will slash the price of its two smartphones of middle and lower purchase range, VIVO Y50 and VIVO Y91C, said a press release issued on Monday.
VIVO Y50 and Y91C are now available at Tk 20,990 and Tk 8,990 respectively. The previous prices of both phones were respectively at Tk 22,990 and Tk 9,990.
VIVO Y50 has launched recently in Bangladesh.
VIVO Y50 has a battery of 5000mAh whereas VIVO Y91C has 4030mAh.
The Vivo Y50 has 8 GB RAM and 128 GB ROM, and VIVO Y91C smartphone has 2 GB RAM and 32 GB ROM.
The Chinese multinational company has launched some mid-range budget smartphones keeping an eye on the curved purchasing capability of the users since the outbreak of pandemic from March. Recently VIVO has announced to bring another smartphone of Y series in the country's market.
After that, the company has announced this discount on their smartphones.
Nowadays our lives have become social media-centric. But without an efficient Camera Smartphone, you can hardly visualize your delightful moments on social media platforms. Realizing this need, Oppo produces F-series phones as selfie-centered gadgets with the label "Selfie Expert". On September 9, 2020, Oppo released their latest F-series innovation Oppo F17 Pro. Let’s focus on the features, specs, and price of Oppo F17 Pro in Bangladesh.
Like the other Oppo phones, the Oppo F17 Pro comes with a stunning look. Its construction reveals a smart engineering technique that makes this gadget light-weight (164g), easy-to-grip, and less likely to drop. You won’t feel tired while holding the phone in one hand for long hours. Its slick design (6.30 x 2.91 x 0.30 in) allows you to slip this phone quite easily inside your pocket or handbag.
F17 pro’s Polycarbonate built rear-panel is enriched with a fascinating matt finish. This phone doesn’t catch scratches much easily which makes it suitable for daily use. However, under this price-range, many Oppo fans might have expected a glass-built backside.
This phone has a power key, volume rocker, triple-slot tray (dual SIM with a micro SD card), loudspeaker, bottom-firing loudspeaker, and USB 2.0, Type-C 1.0 reversible connector. Oppo has provided a 3.5mm audio jack in this 7.5mm thick phone that can be a lesson for many companies!
Oppo F17 Pro is blessed with a Super AMOLED panel with a comfortable screen size of 6.43-inch protected by the Corning Gorilla Glass 3+. It offers a full HD display featuring a terrific resolution (1080 x 2400 pixels ay 20:9 ratio). Furthermore, its superb picture density (~408 PPI) delivers mind-blowing color vibrancy that would give you heart-warming experiences while watching movies or videos. Moreover, Wide vine security level-1 support is a blessing for those who enjoy content from Netflix.
With 430 nit brightness, Oppo F17 Pro performs well in direct sunlight. However, under this budget, the lack of a higher refresh rate can dishearten many Oppo fans! Another drawback is that many low-priced competitors bear Gorilla Glass 5 while 17 Pro bears version 3+!
With the tagline “AI portrait cameras”, Oppo F17 Pro comes with six cameras in total. The rear-camera series include a 48MP f/1.8 primary camera, an 8MP f/2.2 ultra-wide-angle shooter, a 2MP f/2.4 monochrome shooter, and a 2MP f/2.4 depth sensor. Besides these, you get a 16MP f/2.4 primary selfie shooter and a 2MP f/2.4 depth sensor on the front side of this Smartphone.
By virtue of the Samsung GM1 sensor, the Primary rear camera can capture sharp images with great detailing and exposure in ample daylight conditions. The white balance is well-maintained. The color accuracy doesn’t get hampered with unwanted saturation or over-sharpness. Utilizing the reliable auto-focus feature, amateur photographers can even take amazing close-up photos without much effort. F17 Pro will amuse you with default 12MP images, but you can take up to 48MP photos through optimizing the camera features.
F17 pro’s 8MP ultra wide-angle sensor is capable of shooting mesmerizing photos that can compete with its primary sensor in terms of color accuracy, exposure, and sharpness. Though details may be a bit less, the distortion is limited.
The Portrait mode can efficiently blur out the background areas. You can easily adjust the level of blurring before shooting. The image quality of the depth sensor delivers proper edge detection and nice sharpness. The skin tone varies a bit from real-life due to a slight whitening effect. Under the portrait mode, F17 delivers fine-tuned images that look more emotive.
In artificial light, the images still hold the sharpness and details. In the extremely low light conditions, noises are visible on the captures and the detailing gets a bit weaker. Don’t forget to activate the night mode while shooting in darkness. This feature alleviates the quality of images by fixing the noises, grains, and exposure. To capture better photos, try to hold the phone stable.
This phone lacks any macro shooter. This is not a big issue, as a macro camera available in most of the contemporary phones has little to offer. Instead of a macro lens, 17 Pro is provided with a monochrome shooter which we have also seen in Oppo Reno 4. Activating the OP7 filter under portrait mode, you can capture black-and-white images making the subject look more dramatic.
Let’s turn to the front cameras. The 16MP main shooter captures gorgeous selfies under adequate light. The facial details and skin tones look close to natural. Turning off the beauty mode realistic selfies can be captured. The 2MP depth sensor offers sharp-edged selfies under Portrait mode in good light conditions.
Overall, the image quality is lovely. While other phones are boasting on megapixels, Oppo is prioritizing over professional image processing that makes this brand stand out from others. This phone is enriched with a bunch of AI features such as AI Portrait color, AI super Night Portrait, AI Super Clear Portrait, AI Beautification2.0, etc. Utilizing these features you can further optimize the images.
Oppo F17 pro can shoot 4k videos at 30fps resolution with the primary rear camera, but you have to sacrifice stabilization and compromise on color accuracy. The stabilization feature is available if video is captured at 1080p resolution. You can also shoot slo-mo videos at 1080p resolution. With the ultra-wide-angle 8MP rear shooter 1080p videos can be captured without stabilization.
Additionally, the front-facing shooter is capable of recording 1080p videos with acceptable clarity and audio quality. Thanks to Oppo for providing, the ‘Ultra Steady Mode’ on the front sensor that allows you to enjoy stabilization while shooting videos.
Oppo F17 Pro is equipped with an octa-core processor with Cortex A-75 architecture featuring 2.2 GHz clock speed at maximum. In this phone, Mediatek Helio P95 (12 nm) chipset has been applied with PowerVR GM9446 GPU. This combination is expected to offer super-swift performance while day to day usage and browsing. However, under this budget competitors are offering more advanced gaming-friendly chipset. Oppo didn’t build this phone targeting the gamers! You can still play PUBG in medium settings with some lags.
Oppo F17 Pro runs on ColorOS 7.2 on top of Android 10. The intelligent security features of ColorOS can make your user-experience flawless. What is more, F17 Pro is programmed with an anti-lag algorithm that enhances its performance through efficient RAM management. Buying this gadget you get 128 GB internal storage coupled with 8GB RAM. You can install a huge amount of apps and still enjoy butter smooth experience due to its adequate RAM capacity.
The F17 Pro appears as a next-generation phone by virtue of ‘Air Gestures’. This feature allows you to pick up calls, navigate apps or games from distance (about 25-50 centimeters) through waving hands. Furthermore, the networking performance of this phone is very pleasing even in the lifts, basements, or closed rooms. On this phone you get necessary programs like Bluetooth 5.1, GPS, FM radio, etc. UFS 2.1 data transfer technology makes Oppo F17 pro handier for the professionals.
Oppo F17 Pro is powered by a 4015 mAh non-removable Li-Po battery. This phone can serve you for about one day with 7 to 8 hours of SOT, even if used heavily. However, while the budget phone Galaxy M21 is offering a 6000mAh battery at a much lower price, F17 Pro may disappoint you.
Don’t worry! The provided 30W VOOC 4.0 fast charger can recharge this device up to 50% in 30 minutes and 100% within 55 minutes. Furthermore, activating the futuristic feature ‘AI Night Charging’ you can enhance the battery life of this phone through slow charging. This smart feature charges the phone analyzing your sleeping pattern.
Oppo F17 Pro (8GB/128GB) is currently available at BDT 27,990 in Bangladesh. However, the price may change upon company policy.
With an elegant look, Oppo F17 Pro appears as the sleekest phone of 2020. Its Super AMOLED display would make your movie moments breathtaking. With 6 AI Portrait cameras, it can deliver captivating photos for social media. Its clever software optimization delivers rapid performance. However, this phone might do better, if provided with the latest chipset, higher refresh rate, and glass-built back. For the gamers, F17 pro is not recommended. Overall, Oppo F17 Pro can be the right pick for those who are looking for a phone with stylish looks, marvelous display, expert image quality, swift navigation, and fast charging.
Banglalink has officially commenced the registration process of the fourth edition of innovators, a digital ideation competition for innovative youngsters aspiring to become successful future professionals.
Monzula Morshed, chief human resources and administration officer of Banglalik made the announcement at a virtual press conference, said a press release on Sunday.
Qazi Urfi Ahmad, brands and communications director, Ayesha Saeed, head of talent management and other high officials of the company also participated in the online event.
Finding out the most innovative participants, Banglalink innovators will provide them with the opportunity to develop their skills through grooming, boot-camp sessions, workshops and many other activities, the company said in the press release.
The winning team consisting of four participants will be announced after completing a rigorous selection process.
Along with receiving attractive prizes, the winning team will directly participate in the “Assessment Center of the Strategic Assistant Program” of Banglalink.
The members of the first and the second runner-up teams will also get a direct entry to the programme along with attractive prizes.
All members of the top five teams will directly qualify for Banglalink’s “Advanced Internship Program (AIP)” and get opportunities to participate in “Learn from the Startups” and “Campus to Corporate”, two programmes launched for giving students an exposure to startup- and corporate-experiences, respectively.
Students from any UGC approved university can participate in Banglalink innovators by completing the online registration on https://ennovators.banglalink.net
The registration phase will end on October 24.
A total of more than 40,000 students participated in the first three editions.
Huawei’s 5G Telco Converged Cloud (TCC) Solution won the ‘Best Network Virtualisation Initiative’ award at the summit for its innovative virtual machine and container dual engines.
The 5G World Summit 2020 was held online recently, the company said in a press release on Sunday. Cloudification is the foundation of the 5G network and an irreversible trend for telecom networks, it said.
With the evolution from 4G to 5G, virtual machines (VMs) and containers will co-exist in the 5G network. A unified resource pool is required to implement simple resource management and optimal resource utilisation across the network.
An increasing number of industry applications need to be deployed at edge sites with the large scale commercialisation of 5G. Diversified computing capabilities will be widely used on the network. In order to meet strict network SLA, infrastructure reliability needs to be further enhanced.
Huawei’s 5G Telco Converged Cloud (TCC) is the industry’s 1st hyper-converged infrastructure platform. It features dual-stack convergence (OpenStack and Kubernetes), carrier-grade enhancements, diversified computing capabilities, and automation to help operators’ network cloud platform reconstruction and fast 5G SA network deployment.