On the night of Chinese New Year's Eve, I believe that many people were deeply attracted by the magic performed by Liu Qian. The faces of Liu Qian and Nigmaiti Rahman's eyebrows are still fresh in people's minds.
Yes? I hear you ask, what were you doing three days ago?
Without further ado, let's take a look at the magic in earnest
First, we need to take out four scrambled cards:
That's right, it's like this.
Subsequently, they need to be folded in half and torn apart (manual distress).
To illustrate this, let's write down the four cards as A, B, C, DWe count the eight cards as a1, a2, b1, b2, c1, c2, d1, d2Thus, the arrangement formed by the eight playing cards can be written:
Here are the steps for the magic to work::
Place 1 card at the top of the pile at the bottom of the pile, and the number of repetitions is the length of the name (Nigmat Rahman needs to be repeated 7 times, but let's assume that the name only has three Chinese characters).
Place the top 3 cards of the pile anywhere in the pile.
Temporarily remove 1 card from the top of the pile
Insert the top 1 3 cards of the pile anywhere in the pile (depending on the individual's perception of the North and the South - Southerner: 1; Northerners: 2 sheets; Not sure: 3 photos) Let's take the northerners as an example:
Up until this step, target cards C1 and C2 are still on either side of the pile.
Remove the 1 2 cards at the top of the pile (1 for the boys, 2 for the girls) Let's take the boys as an example:
Place 1 card at the top of the pile on the bottom of the pile and repeat 7 times.
Place the top card on the pile and remove the top card from the pile. This is repeated until only one of the last cards is left in your hand, which is a perfect match for the cards removed from step 3.
It is not difficult to see that with each operation, all elements of the deck (the white area) are moved forward twice, and the size of the pile is -1In a nutshell, each "Good Luck Stays" will cause all elements to move by one unit, while "Trouble Thrown" will reduce the pile size by one unit as the elements move. In fact, the removed card is always the second element of the new array every time it is acquired.
If you're a girl, you'll get this procedure:
Based on the above ideas, it is possible to iteratively find other movement methods corresponding to different numbers of playing cards.
Of course, the focus of the Spring Festival Gala is not only wonderful magic, let's explore what cool and trendy technological elements are on the stage
XR+VP facilitates the integration of ideas.
This year's Spring Festival Gala made extensive use of XR (extended reality) + VP (virtual production) technology to achieve a shocking artistic effect of virtual and real. In the program "Mountains and Rivers Poems of Chang'an" at the Shaanxi branch venue, we seemed to see the indulgent and elegant poet Li Bai revisiting his hometown and singing about wine.
In "Health to the Order", the female star Huahua also appeared on the stage with a digital image and performed the moves of Baduanjin together.
The program "Nianjin" echoes the traditional Chinese patterns with the movements of the actors, interpreting the ethereal beauty of the traditional Chinese patterns.
Extended Reality (XR) encompasses augmented reality (AR), mixed reality (MR), and virtual reality (VR) technologies, where the X refers to any letter, and can even be technology that will not be available in the future. XR brings an immersive and interactive experience to the audience by mixing the two virtual and reality.
In virtual reality, users need to be fully immersed in the digital world; Augmented reality requires users to superimpose virtual objects on top of the real world with the help of tools such as digital screens. Mixed reality is a combination of the first two, with real and digital objects being able to coexist and interact in real time.
Paul Milgram and Fumio Kishino once proposed the reality-virtual continuum (Milgram).'S reality-virtuality continuum) defines the real world and the virtual world as the two ends of the coordinate axis, and redefines the concepts of augmented reality, mixed reality and augmented virtuality according to the number of real or virtual elements.
Virtual Production (VP) is a combination of technologies such as extended reality, motion capture, computer-generated imagery (CGI), and facial recognition. The most common way is to use an LED screen as a set, based on a 3D engine that renders in real time on a large screen and synchronizes with the camera, which can bring dynamic effects that are visually realistic.
The biggest feature of virtual production is that the special effects that used to need to be composited in post-production are added to the live scene in real time, which improves the director's control of visual effects and reduces the cost of post-processing.
The "core" element of science and technology.
In addition to the cool AI visual rendering, the design style of the chip elements on the stage of "Winter Warm Sun" in the Liaoning branch venue is also impressive.
When we talk about chips, we are usually talking about integrated circuit chips. Before we understand integrated circuits, let's first understand the basics of circuits.
The basic components in a circuit include resistors, capacitors, and inductors. Resistors limit the flow of current, providing damping; A capacitor stores an electric charge and stores energy in an electric field, while an inductor stores the energy of a magnetic field.
In addition, another important component in modern electronics is transistors. Transistors are a class of semiconductor devices that are used to amplify electrical signals or are used as switches for electrical signals. A transistor usually has three pins, and one can control the current flowing through the other two pins with the current or potential applied to the third pin, so it has the functions of amplification and circuit switching.
These basic units can be combined into circuits that perform specific functions, such as amplifying signals, filtering out noise, or performing logic operations.
In order to improve reliability and reduce size, people use semiconductor processing technology to interconnect circuit components on a single semiconductor wafer, which is an integrated circuit, which is often referred to as a chip.
The process of chip manufacturing is very complex. In order to improve reliability and reduce the number of defects in the chip, the processing must be carried out in an ultra-clean environment. Single-crystal substrates undergo complex cleaning to ensure surface finish and purity. In addition, there are steps such as lithography, etching, ion implantation, metal deposition, etc., which are used to form a precise circuit structure on a single crystal.
Overall, chips are the cornerstone of modern electronic technology, and their invention and application have driven the development of the information society and play a key role in various fields.
Drone show.
We shifted our gaze beyond the stage, where the formation of drones glittering in the night sky brought us to the air show. They are sometimes arranged in the shape of Zhurong, Chang'e probe, and sometimes snowflakes along with the lyrics.
When readers and friends see the wonderful drone show, I believe everyone will be confused: how do drones arrange the patterns they want in the air?
In order to answer this puzzle, let's first answer the first question, how to efficiently control the formation flight of drones, so that each drone can accurately reach the designated position without colliding with each other?
We need to know that automatic control is more accurate and safer than manual control. It is unrealistic to have a pilot for each drone, instead, under the supervision of a few human operators, the drone formation is controlled by a computer system to fly autonomously and navigate autonomously is a better way to control.
So the question is, how do drones know where they are? Don't worry, we have GPS GPS, which is basically enough for drone shows in open areas away from buildings. If the performance needs to be performed near a building or indoors, then a special indoor positioning system needs to be introduced.
The modeling pattern and travel trajectory of the UAV formation should be programmed and designed in advance. Designers often need to pre-determine the number of drones and conceive different design options; Then, the flight trajectory of each UAV in the UAV formation is specified when the formation is converted, and finally the simulation is verified. Specifying the flight trajectory is one of the most critical steps, requiring each drone to have one and only one end point during formation conversion, and the sum of all drone flight paths is as small as possible.
One common algorithm used to accomplish such a design is called the Hungarian algorithm. The Hungarian algorithm lists all possible combinations of start and end points for a given number of drones, and calculates the total distance traveled by drones for each start-end combination. In this way, the problem of UAV path design becomes an optimization problem under specific constraints.
In addition, it is necessary to ensure that there are no collisions between drones. Considering the shape characteristics of the UAV and the GPS positioning error, the designer artificially introduced a minimum distance ΔMN, and if the distance between the two UAVs is less than this minimum distance under a certain formation, this formation design is removed.
Guided by these algorithms, experienced designers can design a safe and efficient formation conversion scheme to present a wonderful drone light show for everyone.
Every year on Chinese New Year's Eve symbolizes reunion and harmony, and the Spring Festival Gala on Chinese New Year's Eve has long become a common memory of several generations of New Year's moments. The trendy theme and cool technological elements have given the Spring Festival Gala endless youthful vitality.
On the occasion of the New Year, I wish you all a bright future, a bright life, and a prosperous career!
Edited by wnkwef