How to make a Christmas greeting by creating a family or group photo from separate photographs

Let’s tell you how to create Christmas greetings by generating a group image from separate photos. For this we are going to use artificial intelligencespecifically Gemini with its Nano Banana, being possibly the best free alternative to do this. Here, the secret is again to use an appropriate prompt in which you describe exactly what you want. We are going to tell you everything you should take into account and the prompt you should use later to create the image. You will see that it is quite simple. Group Christmas greeting with Gemini Before you start, you first have to Carefully select the photos you want to use. Try to have similar lighting, or that the same part of everyone’s body can be seen. Gemini is going to try to cut and paste all the photos together making as little modifications as possible, so keep that in mind. They should be photos that look similar. Of course, you should also know that you will be able to change their clothes to the people in the photos. Therefore, and although the ideal is for everyone to be dressed similarly, it is not essential, because then you can have Gemini put the clothes you want on them. Once you have everything, start a conversation with Gemini. Inside, first upload the photos you are going to use. Afterwards, you can copy and paste the following prompt and send it along with the photos: I want you to create a Christmas card with a family photo. I’m going to give you separate photos of people, and I want you to create a family photo where they all appear together. Under the photo you have to say “Merry Christmas”. Make the background with Christmas motifs. In this prompt you can make changes or more details. You can describe the background to be used, and also the font and text. Don’t be afraid to try, experiment and try again if the first result doesn’t work out for you. After doing so, as we have told you before, you can ask Gemini to change their clothes. This way, if people’s clothes are different in the photos, you can unify the result a little. In fact, if you have a group photo you can also simply ask them to change their outfits. Another option is to upload the group photo and then an individual photo of another person who is not there and ask Gemini to add this person. And do you remember when we told you how to turn your photos into video game scenarios either in a character from Stranger Things? Well, you can also use these tricks here to make the greeting as original and personalized as possible. In Xataka Basics | Gemini Image Editor: 16 Ways and Tricks to Squeeze Nano-banana with Google’s AI

Taking spectacular photographs of the Perseids seems impossible. NASA has a guide to demonstrate otherwise

The Perseids are already here and, although there are still a few days to reach their peak of activity, it is convenient to keep in mind some clues and tricks if our intention is to capture them in a photograph. Because as more than one will have proven, this is not always easy. AND Who better than NASA to point to any of these tricks. The first step: plan. If we want to get a good image of this rain of stars, the first thing is to think where and when. The Perseids or Tears of San Lorenzo can be seen for several weeks of summer, approximately between June 17 and August 24, and reach their peak of activity around August 11 and 12. Where and when it is also important when it comes to circumventing the great enemy of astrophotography: light pollution. First, it is convenient Avoid full moon And the phases in which it reflects the most light, since, although we do not perceive this light, it reduces the contrast that our eyes require to see the fleeting stars. It is also important flee from light pollution that generate the lights of cities and other settlements, so perhaps we should plan a trip to the field if we want to see these stars. Finally, we must also know where to look. Perseids owe their name that seem to radiate The constellation of Perseus. Knowing how to locating this constellation in the sky is very useful when restricting the angle to which to aim the objectives of our cameras and increase the probability of capturing some of these flashes. Second step: the team. A tripod can be helpful. Photography will require a long exposure. Maybe they are just a few seconds, but our pulse or any other involuntary movement could spoil a perfect shot. If we do not have a tripod we may resort to a “homemade” solution, such as supporting our camera on some rocks, but that will subtract maneuvering capacity. It can also be useful pertrech In order not to have the chamber trigger and thus avoid additional vibrations, but we can also dodge this requirement with the camera timer. Regarding the lens, NASA’s recommendation is in angular. Since we do not know when and where the next flash will happen, it will be best to cover a lot to increase our chances of success. Third step: Prepare. Once in position, we can start looking The constellation of Perseus. Orient our camera towards it will increase the chances of capturing the flashes of this rain of stars. The approach, best manual. The reason is that cameras self -effect systems can be lost in night darkness. Since we will not have to change the focal point, this does not imply any problem once we have taken the ideal approach. We will have, of course, to walk with an eye: sometimes focusing on infinity is not the best option, so it is a good idea to try small adjustments until you find the ideal approach. There is still a detail. We had said that capturing a rain of stars requires long exhibitions. Calculate how long can also require adjustments, but NASA also has a trick to facilitate work: Rule 500. It is about dividing 500 by the focal distance of the lens, and using the figure as time, in seconds, that our open shutter will remain. This value represents the maximum time that we can maintain the exposure before the terrestrial rotation makes the background stars begin to spread. If we have a 20 mm lens, we will have that 500/20 = 25 seconds of maximum. Experiment, enjoy. Rule 500 can be a good start, but we will still have to adjust our ISO and opening values, which will also allow us to play with shorter exhibitions. We can make small changes and verify how each one affects the quality of the image or its aesthetics. He last advice that NASA It has for those who are encouraged to photograph the persistes (or any other rain of stars) is simple: enjoy. These astronomical events offer us an opportunity to see the night sky in a different way, in advance generated by the unexpected flashes that cross the night sky on some summer nights. In Xataka | What are they and how exactly the Perseids are formed, the most fascinating astronomical phenomenon that we can see today Image | Fatih Turan

There are people using AI to “invent” their own memories from photographs. And that has opened a philosophical debate

In the photo the kid smiles, abholly happy. His mother, also smiling, hugs him while looking at the camera. The photo could be that of any of us with our mother, but with this happens one thing: that an AI has made it a video. One that immediately has the potential to become a memory. A memory of lie. That photo shared it in x Alexis Ohanian, co -founder of Reddit, millionaire and entrepreneur. Ohanian – caught with Serena Williams since 2017 – told in that message how when he created that video innocently “I was not prepared for how I would make me feel this.” In his family they had no video camera, so he never had a video with his mother. So almost without thinking he used that photo in the newly released Midjourney video generator so that from it generated a video for AI. The result left him astonished. “This is how she hugged me,” he explained. “I have seen it 50 times again.” But with that message A great moral and philosophical debate was unleashed. One about how something like this can impact us individually and as a society. While Ohanian himself He defended himself Before those who criticized the idea (“I really don’t understand why you wouldn’t use AI for this”) others They explained to him that those memories were not real: “Creating a video for someone loved is not to create a memory of them. You are putting words they never said in their mouth.” As said Another user named Erich Thilow, “is (a memory). But seeing it will make it real in your memory. I am not a fan of something like that.” Other users took advantage of cinema as the center of the debate. A user named Vanillaelle shared A Harry Potter photogram revealing with a false memory of his parents in the mirror (which has inspired the image of this theme). Another user called Andro toward The analogy with ‘Matrix‘. In that movie, he explained, one to see her wondered why people would want to face reality. “Now he doesn’t have to ask him,” said said user. The era of false memories That new capacity of the generative AI Generate false memories It is disturbing, and it could well be part of that concept already studied in psychology. These lies memories did not happen or are the distortion of a real event, and according to experts, such as the American psychologist Elizabeth Loftus, it is possible to induce them such as hypnosis or with techniques such as the essay: repetitions of an event that was confirmed as fantastic. Upon listening or visualizing the same event, the person can begin to remember as if it had really happened. That idea thrown by this psychologist also collects it Francisco Taberneroclinical psychologist in Puertollano (Ciudad Real). According to him “memories are usually quite distorted”, but for him there is no special risk in that type of process that converts a photo into a souvenir of lie: “The general experience of memory will be subjective and more or less the same we had. I do not think that a few seconds of movement change the memory that you already had. At the emotional level the memory is all emotion, what causes you remains the same as what you have told to the AI.” Loftus – criticized by the pseudoscientific concept he created, the “false memory syndrome” – published A study In this regard, together with Ira E. Hyman Jr., and both explained how “memory is always constructive. People create the past based on the information that remains in memory, in general knowledge, and on social demand to recall situations.” Ethical and moral issues are definitely huge, and to talk about them we wanted to contact more experts. Santiago Sánchez-Migallón (The von Neumann machine) It is defined as a “philosopher of AI” and is usual collaborator of Xataka. For him, “we must understand the emergence of a technology as an opportunity and no, a priori, as something perverse only because of the fact that he treats a delicate issue as, in this case, the death or authenticity of memories.” Sánchez-Migallón makes it clear that the first thing is to make technology safe and that the user “can differentiate true and false memories”, but assured this, this expert thinks that with this technology it would be possible to help “erase traumas” and even imagine a not very distant future in which it was possible to gain procedural memories or skills: “Could we record in our brain the ability to play the piano or talk?” Darío Benítezpsychologist and co -founder of PSYCHOFLIX and of the podcast Validlyit is optimistic with AI, but you see “few or no advantage” to this type of application because “if you are reliving an image of a loved one you expose yourself to an emotion that you did not expect and that can rekindle a type of duel that you had already prosecuted.” Something like that, he indicates, can change the perception of your values ​​because this type of lies memories “can make you feel that you lived them and that that effectively happened.” It is like Ohanian’s own example. For Benítez it could happen that in the video generated the mother looked at the child with a subtle disdain and generated a reaction of the type “yes, it is true that my mother did not treat me at all well”, thus generating a hallucination that connects with another idea that perhaps had of her past, which in that case would be of the type “my childhood was not so good.” All that “would even more entangle things,” says this psychologist. The danger of being able to mold memory An technology also has another danger that we have already perceived in many other technological areas. Especially in mobile phones and social networks, which tend to isolate us and catch us in the doomscrolling. With these videos created by generative, “it could be … Read more

photographs and first details of the brand’s finest and most innovative mobile

Samsung’s big day is not over yet. Although the presentation of Unpacked 2025 has focused on Galaxy AI and the news of the new Galaxy S25, that is not all that has appeared throughout the event, and there are many details that we will be able to expand upon as the hours go by. For example, the biggest surprise of the event: the Galaxy S25 Edge. Of course, calling it a ‘surprise’ is perhaps exaggerating, because this is another part of the presentation that had already been leaked a few months ago; The part we didn’t expect is the name. Originally, this device was leaked as the Galaxy S25 Slim, a hint of what it was going to be like; but perhaps that is why Samsung has decided to choose the name Edge for its new model, which will complete the S25 range in the near future. The Galaxy S25 Edge is Samsung’s most innovative mobile phone in many years. To say that it is thin is simply an understatement, since reaching a lower thickness is not as easy as it seems, especially if we do not want sacrifices in the most important areas of the mobile. That is where Samsung’s innovation lies, reducing the thickness while offering an experience very similar or identical to that of the rest of the Galaxy S25 range. For example, the Galaxy S25 Edge is expected to use ALoP technologypresented last year, for the cameras; specifically, for the telephoto camera, which usually takes up a lot of space on the device due to the lenses necessary for optical zoom. Samsung’s solution places the lenses horizontally to avoid this problem without reducing the zoom level. The Galaxy Unpacked preview video showed off this new camera, confirming that it will use it. Samsung Galaxy S25 Edge Alvarez del Vayo The Free Android San Jose, California In the same way, the short video also focused for a moment on the battery of the Galaxy S25 Edge, which uses the new battery technology from Samsung. Instead of stacking the cells, this technology allows the area occupied by the battery inside the mobile to be expanded, to reduce the thickness without reducing capacity. Therefore, the Galaxy S25 Edge should last about the same as a Galaxy S25, or even a Galaxy S25 Ultra according to rumors. Samsung Galaxy S25 Edge Alvarez del Vayo The Free Android San Jose, California EL ESPAÑOL – El Androide Libre has been able to see some models of the Galaxy S25 Edge in person, and the first impressions are shocking. It is a very thin and light device, and surprisingly, it has its own design lines instead of using the same design as the rest of the Galaxy S25 range. Samsung The Free Android This original design is evident in the camera array, which has a completely new design. The big difference is the ‘island’ in which the lenses are housed, unlike the Galaxy S25, whose lenses come directly from the back of the devices. It is very possible that this island was necessary for the space occupied by the cameras, even with Samsung technology, and that makes this device easily recognizable. At the moment, Samsung has not given more details about this new device, both the ‘hardware’ used and the expected launch date; There are likely still several months of development left, considering there were no functional units in Unpacked.

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