5 incredible optical illusions that challenge how you see the world
5 Photos . Updated: 26 May 2025, 12:23 PM IST
Share Via
Optical illusions reveal how our brains interpret visual data and fill in missing details — sometimes incorrectly. Science still cannot fully explain why certain illusions trick our perception.
1/5The café wall illusion makes straight lines between staggered dark and light blocks appear curved due to how our brains perceive contrasting colours. Named by scientist Richard Gregory after a Bristol café, the effect disappears when colours with lower contrast are used. (Pinterest )
2/5The Penrose triangle is a famous impossible object illusion that cannot exist in 3D space. Lionel Penrose popularised it in the 1950s. Dutch artist M.C. Escher famously incorporated such impossible shapes in works like Relativity and Belvedere. (Pinterest )
3/5The checker shadow illusion shows that squares A and B are the same colour, despite appearing different due to a shadow effect. Created by Edward Adelson in 1995, it highlights how our visual system interprets context to process images. (Pinterest )
4/5The Necker cube is a multistable shape that can be perceived from multiple viewpoints due to the lack of visual orientation cues. (BBC Science Focus )
Hashtags
Try Our AI Features
Explore what Daily8 AI can do for you:
Comments
No comments yet...
Related Articles
Time of India
6 hours ago
- Time of India
When Nikki Glaser joked about "Ozempic's biggest night" at Golden Globes 2025
Nikki Glaser , the impeccable comedian, has been championing the 'weight-loss drug,' Ozempic, and calling out all the stigma around the injectable. The 41-year-old comedian has aced to work on the fine line between poking fun at someone and getting the laugh from the audience. Nikki Glaser joked about Ozempic During the Golden Globes 2025 award night in January, Nikki Glaser served as the host of the night. From 'Wicked' to Ozempic, she achieved incredible success with her jokes and nuanced mimics. Addressing the audience, she started the show on what should really be called 'Ozempic's biggest night,' pointing out the use of the type 2 diabetes prescription by Hollywood. Nikki Glaser champions using Ozempic On the other hand, during her appearance on 'The Tonight Show with Jimmy Fallon ,' Glaser did not hesitate to call out all the double standards in society regarding weight-related views. 'Oh, I love it, I love. I'm like, do it, do it. I have no judgment. If you want to do Ozempic, hell yeah, girl,' she said, adding that she wants more people to be comfortable while using the drug. 'I feel like there's, like, this shame—and the shame is only from thin people who want you to stay fat. Like that's really where it's coming from,' the comedian added. Furthermore, Nikki stated, 'They just go, 'You're stealing medicine from diabetics who need it.' Like anyone's ever cared about someone with diabetes who doesn't have it,' while talking with the host. 'It's suddenly all these thin, white women are like 'diabetics need their meds.' I think you're upset that Kathy Bates has a thigh gap. by Taboola by Taboola Sponsored Links Sponsored Links Promoted Links Promoted Links You May Like US$31 trillion in wealth extracted from Indonesia during Dutch colonial rule: President Prabowo CNA Read More Undo That's more what it could be about, I think,' Glaser concluded about Ozempic. What is Ozempic? Ozempic, generically known as semaglutide, is the approved drug for type 2 diabetes in adults, where it helps to lower blood sugar levels. However, it's not an officially approved drug for weight loss. 'When using Ozempic to treat diabetes, weight loss is a common side effect. It is designed to be taken long-term,' according to Davis Health, University of California.
NDTV
9 hours ago
- NDTV
Scientists Reconstruct Bust Of Woman From 10,500 Years Ago
Netherlands: With her clear blue eyes and slightly nervous gaze, the reconstructed bust of Mos'anne -- a woman who lived around 10,500 years ago -- is uncannily lifelike. Reborn via a close partnership between science and art, Mos'anne's bust was created at Belgium's Ghent University as part of a project to explore how the region's last hunter-gatherers lived during the Mesolithic era. "Part of the project is also understanding the genetics of these people, figuring out their kinship and so on, and to be able to really translate the science that we do to a wider audience," the project's lead researcher, Isabelle de Groote, told AFP. Scientists chose the skull of Mos'anne -- named by public vote in reference to Belgium's Meuse Valley -- for reconstruction, as it was exceptionally well preserved. The bones held a large amount of preserved DNA, making it possible to reconstruct the woman -- aged between 35 and 60 at her death -- with remarkable realism. "We also know that in the Mesolithic times, she is genetically part of the Western hunter-gatherer group," said de Groote. Using genetic testing, researchers were able to determine the Mesolithic woman's skin and eye colour. "This group is known for having very dark skin and blue eyes, a bit like Cheddar Man in Britain," she said, referring to the man who lived in Britain around 10,000 years ago, whose skeleton was discovered in 1903. 'Mixed emotions' Mos'anne's DNA revealed valuable clues about her appearance but it was the unique skills of Dutch "paleo-artists" Alfons and Adrie Kennis that brought her back to life. After receiving guidance from the researchers -- including instructions to use ochre pigment on Mos'anne's headband -- the twins began their work, from moulding the skull to the final decorative feather, meticulously sculpting each facial muscle in clay. "The biggest part of the reconstruction is forming a character," Alfons Kennis said from their Darwin-esque studio in Arnhem. "You can make a forensic reconstruction... use the data, apply the muscles, apply the skin, but you get no character," Kennis said of their artistic process. The Kennis brothers -- whose surname means "knowledge" in Dutch -- take about six months to complete a reconstruction. They gained global recognition in the 2000s, their work exhibited in museums worldwide and featured in specialist publications. The twins, fascinated by evolution and visual art since childhood, draw inspiration from archived anthropological images of early encounters between isolated populations and researchers. "At the first meeting, there's nervousness, shyness. People are laughing, maybe out of nerves," said Kennis. "When a prehistoric ancestor meets you for the first time, you see these mixed emotions... It's these emotions that we want to show." Much about Mos'anne remains unknown. In Ghent, researchers are still analysing her to find out what she would eat. With her headband dotted with duck feathers, golden skin, and pierced animal teeth adorning her ears and necklace, the prehistoric woman seems closer to us than ever. "It was always my wish to be able to make it more tangible in a way," De Groote said.
Hans India
15 hours ago
- Hans India
Startup taps global partnership for early detection of disease
Bengaluru: In a major step towards transforming clinical diagnostics, Bengaluru-based Quantum Biosciences Pvt. Ltd. has partnered with QT Sense, a Dutch pioneer in quantum sensing systems, to jointly advance the use of quantum biology in real-world healthcare. The collaboration combines artificial intelligence with high-fidelity quantum sensors to detect and interpret cellular stress signals—offering a novel approach to diagnosing diseases long before symptoms appear. 'Our core capability lies in decoding weak magnetic signals—specifically oxidative stress—and translating them into predictive medical insights,' said Ravi Puvvala, Founder and Managing Director of Quantum Biosciences. 'By teaming up with QT Sense's cutting-edge platform, Quantum Nuova, we're bridging simulation with sensing to address complex clinical challenges.' The partnership plans to establish a Quantum Sensing Lab in Bengaluru, focused on oncology, cardiology, nephrology, and neurodegenerative disorders. The lab aims to unify sensor development, biological validation, and AI-powered analytics under one roof. According to Dr. Deepak Veeregowda, CEO of QT Sense, 'We're building a toolkit that can detect molecular activity inside living cells in real time. This opens up unprecedented possibilities in toxicology, pharma research, and preventive diagnostics.' Quantum Biosciences is currently incubated at Bengaluru's Centre for Cellular and Molecular Platforms (C-CAMP) and the Centre for Nano Science and Engineering (CeNSE) at IISc. The initiative aligns with India's National Quantum Mission and dovetails with the Government of Karnataka's plan to make the state a global leader in quantum technologies. Karnataka's Minister for Science & Technology, N. S. Boseraju, affirmed support: 'With a Quantum SEZ, incentives, and sector pilots, our state aims to build a $20 billion quantum-driven economy by 2035.'
