Interestingly, cans are manufactured by extruding from an aluminum sheet at a rate of 35 cans per second, with a lid crimped on top. At the end of the line, they are x-rayed to discard any that aren’t fully filled. Glass bottles are used _on average_ 15 times.
Author: Rauf Aliev
July 29 2018, 21:09
Today’s hybrismart article is intended for beginners.
I have released a list of SAP hybris services that I would describe as “essential”. It includes some details on these services too, like the operations they offer and other services they depend on.
To prioritize hundreds of services and identify the essential ones, I analyzed hybris sources to discover the most frequently requested beans. Any hybris developer utilizes (and combines) these in virtually all the custom code they develop.
https://hybrismart.com/2018/07/26/essential-hybris-services/
July 29 2018, 20:57
For programmers who think they are able to explain any code in any programming language:
Proceed to this link and try to figure out what this code does and how. Yes, it is Haskell. Among all functional languages, Haskell is not completely dead. A great exercise for the brain on a quiet Sunday evening.
July 27 2018, 05:51
You probably noticed that there have been no breakthroughs in the e-reader market for years. I have an idea) Imagine you have a reader with an entire library already loaded onto the device, allowing you to start reading any book immediately. For instance, 30% of any book’s content is instantly accessible to the user, whereas the remaining 70% requires activation to access. The search function works across all content. The simplest method to activate the remaining 70% is by sending a simple text message to receive a personal single-use coupon. Alternatively, you can purchase (in advance) a set of universal activation single-use codes (applicable to any book), and these coupons could be sold bundled with the device for an additional charge. The book library package is updatable and could also be sold in a package. For example, if you are a software developer, you might decide to buy a reader pre-loaded with IT books. You could update the device by adding hundreds or thousands of new books. I think this would be very convenient for anyone.
I cannot determine the exact length of this coupon. 10? 15? The device could also be fitted with a barcode reader to expedite entering it into the device. This can be used both for quick searches (for example, in a bookstore, you see a book and wish to buy it. The code is either printed on the book or nearby) and as a coupon reader at the checkout (you pay at the checkout, and the book is yours while the bookstore earns their share).
Regarding security: Coupons are generated as unique to each device. The library part of the device interface is one-directional, preventing book retrieval even in an attempted hack. The coupon verification algorithm is built into the firmware and is unique to each device (the algorithm itself can be simple, but it uses parameters that are unique per device). The same algorithm is used by the coupon generation service, which remains inaccessible to all except the manufacturer. The device parameters are known to the manufacturer, thus the coupon generator and coupon verification module are synchronized using the public part of the device ID. This public part of the device ID is printed on the customer card, which the device owner uses to buy coupons. The private part is stored in the device and in the manufacturer’s database used for generation, and it is protected and unobtainable. If you wish to buy a coupon for a specific book or section for a specific device, you need to input these details into a code generation interface: the public part of the device ID and select the desired book or section. Following payment, you will receive the coupon for your device. Once you enter the coupon into the device, it will decrypt and use the book ID or section ID via firmware to grant access. These operations are performed each time you try to access books on the device. The coupons are stored in the device’s memory. Should you need to replace the device (under warranty), the service center will generate a new set of coupons for the new device. This part of the firmware should also be non-updatable to prevent hacking of the process.
What do you think?
July 26 2018, 23:01
Just watched. The genius of the Coen Brothers. The Big Lebowski is an absolute masterpiece! This year is its 20th anniversary, and I decided to rewatch it with the original English track. It’s like chalk and cheese, guys. Thanks Alex Exler for the tip today, it made my day.
July 24 2018, 19:08
This is the best lecture I’ve ever seen on how batteries work. Concepts, a bit of chemistry and physics, illustrated, in clear and simple language (the lecture is in Russian)
July 24 2018, 18:02
[Great talks/lectures, in Russian, on paleoanthropology, from Stanislav Drobyshevsky]
I recently watched a whole series of lectures on paleoanthropology by Stanislav Drobyshevsky. Highly recommended, incredibly interesting. He has a huge number of lectures, you can just pick any and listen. If anyone knows Stas – introduce us)
https://www.youtube.com/watch?v=kMNA2YNEM5g
“Who created us, and at what cost,” about an hour
https://www.youtube.com/watch?v=AvmI8IkKCss
“Kin, dawn, and nearly apes,” about two and a half hours
https://www.youtube.com/watch?v=7K4mBjuvWtw
“Hobbits, vegans, and other oddities of evolution,” 25 min
https://www.youtube.com/watch?v=2aRdT-I5KcM
“Anatomy of a Centaur,” 25 min
https://www.youtube.com/watch?v=IB0QbFqMIn8
“Homo scape. How did our ancestors die?”
https://www.youtube.com/watch?v=niOk-tcN81I
“Is intelligence inevitable?”
https://www.youtube.com/watch?v=z1G9RlPq6s0
“Myths about races,” 2 hours
https://www.youtube.com/watch?v=LJQYAkyHD5w
“The earliest tamers of fire,” about 30 min
https://www.youtube.com/watch?v=_KaipDhGrfk
“The origin of human races,” an hour and a half
https://www.youtube.com/watch?v=CvDjWw_guZU
“Intellectual capacities of races,” 15 minutes
https://www.youtube.com/watch?v=X6-DKuwHyjY
“A gill will not spoil an ear. Useless parts in humans,” 40 minutes
“Is intelligence inevitable,” about an hour
https://www.youtube.com/watch?v=L0ZA8gS4D7Q
“The biological future of mankind,” about 40 min
https://www.youtube.com/watch?v=8RRZku4fpWE
“Social structures of primates and ancient humans,” an hour twenty
https://www.youtube.com/watch?v=NB1j20biCJs
“The emergence of morality in humans: morality in the Paleolithic,” forty minutes
July 23 2018, 20:07
A new update on the hybris blog. A new set of groovy scripts. These scripts help to troubleshoot the hybris instance by injecting your code inside hybris on the fly. I’ve published some before, this is part 6.
https://hybrismart.com/2018/07/20/useful-groovy-scripts-part-6/
July 23 2018, 14:06
Two Chukchi hunters killed a walrus. The geologist sees them dragging the walrus by a tail and says, “Hi guys! Can’t you see the walrus’s tusk clings! It makes your job harder! Take it by the tusk, and things would be a lot easier for you.” The Chukchi hunters listened. They took the walrus by a tusk. It worked! After a while, one of them says, “That geologist is a smart guy. It is much easier to drag the walrus by a tusk.” The second one replies: “Your geologist is an asshole! Look! We’ve come back to the sea!”
July 23 2018, 12:04
Yesterday I learned how IMAX works, the photo is from the Philadelphia Science Museum IMAX theatre.
Film platters weigh 250kg, the projector itself is about 1.5 tonnes. IMAX projectors are equipped with water-cooled xenon lamps. It was really interesting to see all this stuff in action.
I used to think that all IMAXes are digital, and it is so for years, but I learned that Digital IMAX has the same resolution as your domestic 1080P TV. Moreover, there are films which weren’t published for IMAX Digital, such as “Interstellar” or “Dark Night Returns”. The new generation is Laser 4k digital projectors which are rare, but they are much better in terms of quality and closer to 70mm IMAX.
For example, the majority of IMAX theaters are 70mm, some have Dual system (both digital and 70mm, rail system). https://en.wikipedia.org/wiki/List_of_IMAX_venues. In our area, there are two laser 4k projectors, in the National Air and Space Museum and in Steven F. Udvar-Hazy Center. In Moscow, there is only one, Formula Kino Kutuzovsky.
https://www.youtube.com/watch?v=_EaIQoIuSCc
Hi, I'm Rauf Aliev. 