Friday, June 5, 2020

Fastest robot to solve a Rubik's Cube

 
Who
ALBERT BEER
What
0.637 SECOND(S)
Where
GERMANY

The fastest robot to solve a Rubik's Cube is “Sub1 Reloaded” with a time of 0.637 seconds, built by Albert Beer (Germany), and demonstrated at the Infineon booth at the electronica trade fair in Munich, Germany, 09 November 2016.

 

 The computer received two pictures of the cube, identified the color of each piece and calculated a solution with Tom Rokicki's extremely fast implementation of Herbert Kociemba's Two Phase Algorithm. The solution was handed over to an Arduino-compatible Infineon AURIX™ microcontroller board which orchestrated the 21 moves of six high performance steppers, to turn each side of the cube. The cube and the pre-scrambling met all WCA standards.

Full information about HDR in one BLOG....


HDR is the latest upgrade to picture quality of your smartphone, TV, and other streaming devices; here is all you need to know about HDR on smartphone cameras.


In recent times, high dynamic range (HDR) has become trendy, a development occasioned by an explosion of 4K HDR TV sets to select from, in addition to HDR television shows and movies from services like Netflix, Amazon, etc. But we also often come across with a different yet related type of HDR: This is the type you see in your phone’s camera, delivering stunning smartphone photography.

It is a photography process which has been in use for years, especially on mobile phone cameras. Its popularity has now soared due to the HDR+ functionality on Google Pixel XL, which hit the markets in 2016.

Away from the introduction, let’s discuss all you need to know about HDR on smartphone cameras, highlighting the steps to use this feature on your mobile device (whether Android or iOS).


What Is High Dynamic Range (HDR)?

HDR is a technique for adding more dynamic range (the ratio of light to dark in a photograph) to your photos.

Rather than capturing only 1 photo, HDR makes use of 3 photos, each taken at different exposures. You can now use image-editing apps to put these 3 images together & highlight the best parts of each of them.

Concerning HDR on phones, your mobile device will do all the work for you. When you take a picture, it produces a regular and an HDR photo. Consequently, what you will get is a picture, which looks more like what your eyes see, rather than what the cam sees.

This is why when you enable HDR mode, your phone will take a slightly longer time to capture the photo, as it captures 3 pictures, instead of just 1, and processes them to deliver richer results.


Understanding HDR 10 Support

Content in HDR has its own specific formats and is not just a filter applied to normal footage. HDR10 is that HDR standard, featured in a lot of smartphones and smart TVs today. There are no licensing fees attached to it since it is an open-source format.

Thus, phone manufacturers can provide support for it without any restrictions.

High dynamic range 10 is compatible with content delivering up to 4000 nits, in addition to 10-bit color & the REC.2020 color gamut. (Nit is a measure of brightness.)

Put in a simpler way, HDR footage can be mastered using enhanced color as well as highlight greater details, which will yield improved picture quality.

Concerning HDR videos, it equally has attached metadata, which enables a phone or TV screen to tailor footage to be appropriate for the capabilities of the specific display in question. For example, no smartphone or consumer TV can precisely display the full color depth in the REC.2020 format that can be used in HDR10.

But, it can get close as much as possible with that info (metadata).

Some mobile phones — the likes of Apple’s iPhone XS Max, iPhone 11, iPhone 11 Pro — come with support for Dolby Vision. This is a higher-spec HDR standard that accommodates even brighter screens displaying 12-bit color.

Also, the standard contains variable metadata, which implies content developers can freely adjust how a movie interacts with a display, one scene after the other.


Taking Photos in HDR on Your Smartphone

You can enable HDR by launching your phone’s native camera app. Locating the setting to activate HDR is quite straightforward, but the steps vary from one device make and model to the other.

In addition to these, HDR may come under different names based on a phone’s make and model. While some manufacturers call it “Dynamic Tone” or “Rich Tone”, others opt for “Drama”. If you find hard locating the HDR setting on your handset, you can get tips in the device manual or on your manufacturer’s blog.

Alternatively, you can purchase a 3rd-party app on the Play Store for Android and the App Store for iOS.

These are some recommended apps you can try:

When to Use HDR Mode

You would need HDR mode in the following scenarios:

Landscapes: There is usually a lot of contrast between the earth and sky in large landscape photos, which is why several smartphone cameras find it difficult capturing the distinct difference in contrast with their small sensor.

Taking your landscape pictures in HDR mode will enable you to get the details in the sky without having to compromise the earth or land by being too dark.

Also, the feature works for the opposite case, in which you are capturing the land with your cam without blowing out the sky. Here, HDR will offer you 3 different exposures, which are dark, light as well as balanced. And that would help immensely as the subjects in the photography are so starkly contrasted.

Portraits in sunlight: As you may well be aware, one of the most important parts of photography is lighting since the major thing you’re doing when taking a picture is painting with light.

During those times of the day with harsh sunlight, it can introduce dark shadows and glares to your photo, and these could be aesthetically displeasing. You can turn on HDR to help nip this issue in the bud.

For example, if you notice that your picture is dark as a result of too much backlight, HDR will brighten the foreground up without totally washing out those spots that are well lit in the photos.

Also, HDR can ensure your photographs look crisp and color richer.

Low light (without flash): This is much related to harsh light scenarios discussed above as it’s a case of having too much but not enough light. By merging the 3 HDR images, it becomes possible to capture the shadows, highlights as well as details, all of which will otherwise be lost if a single image is taken.

When to Avoid HDR

As you might have observed, when you use HDR sometimes, it makes your photos look worse. It is better to take your pictures without HDR in the following situations:

Photos of subjects in motion: HDR will increase the chance of a blurry photo if any of the subjects is moving or could move. Since HDR captures three images, if your subject moves between the 1st shot and the 2nd one, the final picture will have a poor look.

Vivid colors: In a situation where your scene is too light or dark, HDR will help bring some of the color back. But if there are very vivid colors, HDR can wash them out.

High-contrast scenes: Certain pictures have a better look when there is a stark contrast between the light and dark parts of the images; for instance, in a scenario where there is a dark shadow or silhouette you would like to highlight.

HDR mode will make this less intense, and that would deliver a less interesting photo.

Fortunately, the majority of HDR camera smartphones will offer you 2 images — one shot when HDR is off, and the other when it is on. So, you can always try the feature and observe what the comparison will look like before you put it off completely.


BASE Testing || COLOR CHANGING MAGIC || WITH TURMERIC AND DETERGENT

MATERIAL REQUIRED:
  • 10 gm turmeric
  • 50 gm detergent
  • brush
 WHY TURMERIC ACT AS NATURAL INDICATOR:
Turmeric is a natural acid-base indicator. It helps us identify the nature of any given substance by itself undergoing a color change. It turns yellow in acidic medium and changes it's color to red in basic medium. 


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Robot Dog Hounds Thai Shoppers to Keep Hands Coronavirus-Free

K9's 5G-powered comrades include ROC, which checks temperatures, and LISA, a customer service-bot.


A scurrying robot dog named K9 dispenses hand sanitiser to curious children and wary shoppers -- one of the more unexpected measures Thai malls are taking as the kingdom relaxes coronavirus restrictions.

The hi-tech hound is controlled using 5G, a technology promising super-fast Internet speeds with immediate reaction times that is still in the initial stages of roll out in Thailand.

Mimicking an excited puppy, K9 roams around the popular Central World mall in downtown Bangkok, drawing the attention of delighted children eager to get gel from a bottle attached to its back.


"It's convenient for people to wash their hands, just like a preventive measure... especially in this COVID-19 situation," said Petra Saktidejbhanubandh, a marketing officer for mobile operator Advanced Info Services (AIS).

AIS is aiming to roll out a 5G network for smartphones by the end of the year.

K9's 5G-powered comrades include ROC, which checks temperatures, and LISA, a customer service-bot.

"For K9 especially, people just think it's really cute," Petra told AFP, adding they hope to dispel any fiction-fuelled fear of a robot takeover.

"The robots are here to assist people, not to replace them."


But shopper Lapassanan Buranapatpakorn was unconvinced, saying that she found K9's skeletal mechanical frame "creepy".

"I think the execution, like the robot itself, is a bit scary," the 29-year-old said, though she admitted that giving out hand sanitiser is a "good idea".

Thailand has gradually lifted restriction on businesses, which have taken precautions such as seating customers apart in restaurants or erecting plastic dividers in massage parlours.

The kingdom currently has 3,101 confirmed cases of the virus and 58 deaths.

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Nokia 2 V Tella With MediaTek Helio A22 SoC, 2GB RAM Spotted on Geekbench

Nokia 2 V Tella appears to be a new version of Nokia 2 V, launched in the US last year.


Nokia brand licensee, HMD Global appears to be working on a new smartphone, Nokia 2 V Tella. This upcoming Nokia phone has surfaced on benchmark website Geekbench - suggesting its existence. The smartphone has appeared on the site with some key specifications. As the name suggests, Nokia 2 V Tella appears to be a new version of Nokia 2 V which itself is a rebranded Nokia 2.1 for Verizon.

As per the listing on the Geekbench site, the Nokia 2 V Tella runs Android 10 and has 2GB of RAM. The phone is said to be powered by quad-core MT6761 processor, also known as MediaTek Helio A22 SoC with a base frequency of 2Ghz. The phone on the site has received a single-core score of 829 and a multi-core score of 2,422.

Nokia 2 V Tella - A New Version of Nokia 2 V?

As mentioned, the name suggests that the Nokia V 2 Tella is a new version of the Nokia 2 V that was launched in the US last year as a rebranded version of Nokia 2.1. Nokia 2 V is currently priced at $39.88 (roughly Rs. 3,000) via Verizon.


To recall, the Nokia V 2 or the Nokia 2.1, runs on Android 8 Oreo (Go edition) out-of-the-box, and sports a 5.5-inch HD (720x1,280 pixels) display. The phone is powered by a Qualcomm Snapdragon 425 SoC, coupled with 1GB of RAM. There is a 4000mAh battery under the hood that comes with a claimed 2-day battery life.

In terms of the cameras, the phone comes with an 8-megapixel rear camera and a 5-megapixel front camera.

Connectivity options include 4G LTE, Wi-Fi 802.11 a/b/g/n, GPS/ A-GPS, GLONASS, Beidou, Micro-USB, and a 3.5mm headphone jack. Sensors on the Nokia 2.1 or Nokia 2 V, include accelerometer, ambient light sensor, and proximity sensor. The phone measures 153.7x77.7x9.35mm and weighs 181 grams.

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Xiaomi Smartphone Codenamed CAS to Offer 120x Zoom Support...

Xiaomi is working on another phone with a 108-megapixel camera

BY: SCIENTIFIC TECH

Xiaomi's upcoming smartphone, codenamed CAS, will have a 108-megapixel camera with 120x zoom, according to reports. The Xiaomi Mi 10 is the brand's first smartphone to sport a 108-megapixel camera, but it looks like it isn't going to be the only one. Reports have surfaced recently hinting that the Chinese smartphone maker is planning on bringing yet another smartphone to the market with a 108-megapixel primary camera, and some other interesting camera features too. The report suggests that Xiaomi has been working on this smartphone from the beginning of 2020. While some leaks about the camera on this upcoming smartphone have          surfaced, other key specifications are still unknown.

The report of Xiaomi's second 108-megapixel smartphone surfaced on Xiaomishka, which reveals that the upcoming smartphone is codenamed CAS. The report claims that the zoom capabilities of this new smartphone are higher than others currently in the market — according to the report, the leak of an engineering sample tips 120x Digital Zoom. This is being achieved by using a periscope camera similar to the one tipped for the Mi 10 Youth Edition.

Currently, the Samsung Galaxy S20 Ultra has the highest zoom capability at 100x magnification, which Samsung advertises as 100X Space Zoom. The report mentions the optical zoom to be at 12x and that 120x will be what Xiaomi will advertise. This report also mentions that this new CAS smartphone is using a different sensor code-named HM2.

Xiaomishka suggests that this new smartphone will be a part of the new Xiaomi Mi 10 CC series. It is tipped to sport a Qualcomm Snapdragon 775G SoC, NFC as well as 5G connectivity. It expects a July launch for this new smartphone.

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