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Showing posts with label Camara. Show all posts
Showing posts with label Camara. Show all posts

মানুষের মাথা কত জিবি, জানেন কি?

মানুষের মাথা কত জিবি, জানেন কি?



ডেস্ক রিপোর্ট ● আমরা প্রায়ই কথা বলতে শুনি- মেমোরি কার্ড, ল্যাপটপ, কম্পিউটার হার্ডডিস্ক ও ইউএসবি ফ্লাশ ড্রাইভ এসব নিয়ে। মেমোরির ক্যাপাসিটি বা ধারণক্ষমতা নিয়ে আমরা আলাপ করি প্রতিনিয়ত।
বাজারে ১ জিবি, ২ জিবি এভাবে ১২৮ জিবি বা আরও বেশি জিবির মেমোরি কার্ড বা পেনড্রাইভ পাওয়া যায়। কিছু কিছু হার্ডডিস্ক ও পেনড্রাইভ ১০০০ থেকে ২০০০ গিগাবাইট পর্যন্ত মেমোরি ধারণ করতে পারে। কিন্তু আমরা কি ভেবে দেখেছি সৃষ্টিকর্তা আমাদের ব্রেনে কত জিবি মেমোরি দিয়েছেন?
বিজ্ঞানীরা আজও মানুষের ব্রেনের ক্যাপাসিটি বা ধারণক্ষমতা নির্ণয় করতে সক্ষম হননি। তবে বিজ্ঞানীরা বলছেন, আপনি যদি ৩০ লাখ ঘণ্টা বা ৩৪২ বছর একনাগাড়ে মস্তিষ্কের মেমোরি কার্ডে সারাক্ষণ ভিডিও ধারণ করেন, তাতেও আপনার মস্তিষ্ক নামের সুপার কম্পিউটারের মেমোরি স্পেস পূরণ হবে না।
মস্তিষ্কের মেমোরি স্পেস নিয়ে গবেষণা তথ্যে নর্থ ওয়েস্টার্ন বিশ্ববিদ্যালয়ের সাইকোলজির অধ্যাপক ড. পল রেবার উল্লেখ করেছেন, মানুষের মস্তিষ্কে রয়েছে ১০০ কোটি বা এক বিলিয়ন নিউরন। প্রতিটি নিউরন একে অপরের সঙ্গে গড়ে তুলেছে ১ হাজার সংযোগ, যার গাণিতিক সংখ্যা হবে এক ট্রিলিয়নের বেশি।
বিজ্ঞানীরা বলছেন, যদি প্রতিটি নিউরন একটি করে মেমোরি ধারণ করে তা হলেও কারও জীবদ্দশায় কখনও মেমোরি স্পেস শেষ হবে না। বরং এক একটা নিউরন অসংখ্য মেমোরি ধারণ করতে সক্ষম।
তিনি আরও বলেন, অধ্যাপক পল রেবর উল্লেখ করেছেন, ব্রেন যদি কোনো সর্বাধুনিক ডিজিটাল ভিডিও রেকর্ডারের মতো মেমোরি ধারণ করে, তা হলে সেই মেমোরি যদি কোনো টিভিতে অবিরাম সম্প্রচার করা হয়, তা হলে তিন শতাধিক বছর লাগবে তা প্রচার করতে।
বিজ্ঞানীরা বলছেন, ব্রেনের মেমোরি ধারণক্ষমতা কমপক্ষে ২ দশমিক ৫ পেটাবাইট অথবা ১ মিলিয়ন জিবি বা ১০ লাখ গিগাবাইট ধারণক্ষমতা রয়েছে মস্তিষ্কের মেমোরি কার্ডের।

Green Screen Pack for MCPE

Green Screen Pack for MCPE


This is a texture pack for Minecraft PE that contains green screen. Green screen is very useful for effects and for more. People who like editing videos know that if someone use green screen then he / she can fill it with an image, a video, a background, or with anything else.



I used the glowstone’s texture to create a light green block. You also can use it in dark place because it’s light.
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Installation

1. Click the link ( Green Screen.mcpack ).
2. A Mediafire site will show up. Download the pack from there.
3. Click on the file and open it with Minecraft.
4. Enjoy!

Downloads

Supported Minecraft versions

Android boost: Huge upgrade revealed ahead of major Google announcement

Android boost: Huge upgrade revealed ahead of major Google announcement


Android update
Android is harnessed by over 2.5 billion devices across the globe (Image: Google)

ANDROID has been updated ahead of a major Google announcement that will surely excite the tech giant's deluge of fans.

Android is Google's operating system that is harnessed by over 2.5 billion devices across the globe.

The software receives substantial yearly updates that typically introduce a swathe of new features.
This year Google will release Android Q, the tenth iteration of the operating system.
Ahead of its full launch, the American tech giant has released beta builds of Android Q that have showcased the new features it will bring to the table.

Huawei launches own operating system to rival Android

Huawei launches own operating system to rival Android


Welcome
Chinese telecom giant Huawei unveiled its own operating system on Friday, as it faces the threat of losing access to Android systems amid escalating US-China trade tensions.
Richard Yu, the head of Huawei's consumer business, told a press conference in the southern city of Dongguan that the new system, called HarmonyOS or HongMeng in Chinese, would “bring more harmony and convenience to the world”.
The highly-anticipated software is considered crucial for the tech group's survival as it confronts a looming White House ban on US companies selling technology products to Huawei which could remove its access to Google's Android operating system.
See: Huawei Vs Trump

Yu said the new system was a “future oriented OS” to be “more smooth and secure”, which he said was “completely different from Android and iOS”.
Huawei said the first version of the operating system would launch later this year in its smart screen products, before expanding across a range of smart devices including wearable technology over the next three years.
“If you're asking when will we apply this to the smartphone, we can do it at any time,” said Yu, adding that they gave priority to using Google's Android operating system, which is compatible with Harmony.
“However, if we cannot use it (Android) in the future, we can immediately switch to the Harmony OS,” he said.
In May the company was swept into the deepening trade war between Beijing and Washington which has seen punitive tariffs slapped on billions of dollars of two-way trade.
Huawei — considered the world leader in superfast fifth-generation or 5G equipment and the world's number two smartphone producer — has been blacklisted by US President Donald Trump amid suspicions it provides a backdoor for Chinese intelligence services, something the firm denies.
On Thursday, Beijing slammed US rules banning Huawei and other Chinese companies from government contracts, saying they amounted to an “abuse of state power”.

'Plan B'

As a result of US moves to blacklist Huawei, American companies are theoretically no longer allowed to sell technology products to the firm, but a three-month exemption period — which ends next week — was granted by Washington before the measure came into force.
That ban could prevent the Chinese tech firm from getting hold of key hardware and software including smartphone chips and elements of the Google Android operating system, which equips the vast majority of smartphones in the world, including those of Huawei.
Huawei has reportedly been working on its own operating system since 2012, but the group has always said publicly it didn't want to replace its Android phones with a home operating system.
Yu told German newspaper Die Welt in an interview published in March that creating their own operating system was “Plan B”.
Huawei will be able to “develop at a lower cost a brand new ecosystem” and “mitigate its dependence on US suppliers for its software needs”, Kenny Liew, technology analyst at Fitch Solutions, told AFP.
However, smartphones using the system would mainly be confined to the Chinese market, Liew said.
Developing an operating system and the entire ecosystem that accompanies it is a complex affair. Apart from Google's Android, the only other popular operating system is Apple's iOS, available exclusively on the iPhone.
Microsoft pulled the plug on its Windows Phone platform earlier this year, and Samsung's Tizen system is barely known compared with Android and iOS.
But without access to the full version of Android or the popular services of Google — not to mention the many applications available on the Google Play store — Huawei may have trouble convincing consumers outside China to buy its phones.

New DJI product launch teased for August 13

New DJI product launch teased for August 13

It could be the arrival of the Osmo Mobile 3

DJI definitely seems to be keeping busy – less than a month ago the Chinese manufacturer debuted the lightweight Ronin-SC gimbal for mirrorless cameras, which was followed closely by the release of its new FPV Goggles.
According to a 15-second video posted on its official YouTube channel, DJI is gearing up to announce something new on August 13.
Loading video
The teaser itself doesn’t seem to hold any clues as to what might be making its debut next week, but based on some other evidence, it could well be the next generation Osmo Mobile smartphone gimbal.
DroneDJ was the first to unearth details about the Osmo Mobile 3, thanks to a public FCC filing made on July 31.
(Image: © DJI)
Amongst the paperwork filed is the user manual for the upcoming gimbal, giving us a clear idea as to what to expect. The Osmo Mobile 3 will be larger than its predecessor, with dimensions of 286 x 126 x 98mm and weighing in at 405g. However, the phone grip will fold down to rest alongside the handle for easy storage.
It also looks like the new gimbal will be able to fit bigger and wider phones (perhaps even the newly announced Samsung Galaxy Note 10 series). It will be armed with Bluetooth Low Energy 5 to optimize power consumption and, unlike the Osmo Mobile 2, will charge via USB-C.

Droning on and on

If you’re expecting DJI to announce new drones, you may need to wait a while. An eagle-eyed Norwegain reader pointed out to DroneDJ that a special section on the DJI website lists the paperwork for the European Union Declaration of Conformity – including those for the DJI Mavic 2 Pro+ and the DJI Mavic 2 Zoom+.
(Image: © DJI)
We’re not expecting the possible new drones to make an appearance until 2020 as DJI recently announced it will be implementing aircraft sensors in its consumer drones starting January 2020. These ADS-B sensors will allow the drone pilot to detect and avoid low-flying helicopters and airplanes nearby.

Going mirrorless

(Image: © DJI)
DJI has also filed a patent for an interchangeable lens camera that looks very similar to the Hasselblad X1D-50c. A deep dive into the patent application by Gizmodo Japan has unearthed design images and 3D models of the camera from various angles, giving us a complete look at what could be DJI’s first mirrorless camera, including the markings on the rear controls.green