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This document is a collection of letters from readers published in the New Scientist journal. The letters cover a range of topics, including morality, the origins of Stonehenge, the impact of caffeine on different species, the problems with high-frequency trading, the mathematics behind artificial intelligence, the levels of reality in nature, and the climate impact of food production. The letters come from various locations in the UK and the US. [Extracted from the article]

This document is a collection of letters published in New Scientist. The topics covered include the negative impact of solar energy on agricultural land, the limitations of artificial intelligence in understanding human experiences, the need for solar panels in air conditioning installations, the importance of uniting global tribes through science and religion, the potential misuse of funds for fusion experiments, concerns about the recyclability of cool fabric for clothing, the safety of alcohol consumption, a proposal for a friendship campaign, the challenge of proving the absence of consciousness, the drawbacks of Dyson spheres, and contact information for submitting letters to the magazine. [Extracted from the article]

This document is a collection of letters from readers published in New Scientist. The letters cover a range of topics, including the consciousness of newborn babies, the use of weight-loss drugs, the need for geoengineering tests, the limitations of species counts in measuring biodiversity, the ability of microbes to eat plastic waste, the dangers of introducing plastic-eating microorganisms, the portrayal of the New Horizons spacecraft, the health effects of alcohol consumption, the double-slit experiment, and the disposal of rubbish in volcanoes. The letters provide diverse perspectives on these subjects and offer insights into various scientific and societal issues. [Extracted from the article]

6 May, p 34 From Sam Edge, Ringwood, Hampshire, UK Author Jonathan B. Losos's idea to breed domestic cats to be less interested in hunting would indeed reduce the carnage [...]

This document is a collection of letters from readers published in the New Scientist. The letters cover a range of topics, including the concept of time as a quantum illusion, the benefits of using wood in buildings, the limitations of direct air capture for addressing climate change, the relationship between time dilation and entanglement in the quantum realm, the potential dangers of consuming potassium chloride in salt, the possibility of thinking without language, the nature of consciousness and its relationship to causal power, and the potential need for Dyson spheres for advanced civilizations. The letters provide diverse perspectives on these subjects and offer insights into various scientific and philosophical discussions. [Extracted from the article]

This document is a collection of letters from readers published in New Scientist. The letters cover a range of topics, including the urgency of addressing climate change, the concept of time in quantum mechanics, salt addiction, artificial intelligence, the use of milk as a plant fertilizer, the benefits of wooden buildings, global food insecurity, carbon offsetting, and the disposal of waste in volcanoes. The letters provide diverse perspectives on these subjects and offer insights into various scientific and societal issues. [Extracted from the article]

This document is a collection of letters from readers published in New Scientist. The letters cover a range of topics, including the search for advanced alien life, the potential of regenerative agriculture to combat climate change, alternative sources of omega-3 for vegetarians and vegans, the challenges of addressing eco-anxiety, the complexity of the economy, the nature of dark matter, the impact of vines on buildings, the risks of technological optimism, the concept of living in a simulation, and the philosophical implications of the quantum multiverse. The letters provide diverse perspectives on these subjects and offer insights into current scientific debates. [Extracted from the article]

This document is a collection of letters from readers published in the New Scientist. The letters cover a range of topics, including concerns about the plan to bring back the woolly mammoth, the scale of carbon dioxide capture needed to address climate change, the reintroduction of wolves in modern Britain, weight-loss treatments, miso fermentation in space, the merits of artificial intelligence compared to human empathy, the potential correlation between lower IQ and COVID-19 infection, the threat to African penguins, and corrections to previous articles. The letters provide diverse perspectives on these subjects and offer insights into various scientific and environmental issues. [Extracted from the article]

This document is a collection of letters from readers published in New Scientist. The topics discussed include the possibility of artificial intelligences having empathy, the overlooked concern of sports-related concussions, the harmonic intervals in music, habituation to the dire state of the world, the removal of microplastics from tap water, the limitations of exercise as a treatment for post-viral conditions, and the use of tree staking in urban environments. The letters provide diverse perspectives on these subjects, offering insights and raising important questions for further exploration. [Extracted from the article]

This document is a collection of letters from readers of New Scientist on various topics. One letter discusses the concept of "natural disasters" and argues that disasters are not natural but rather the result of economic, political, and social processes. Another letter addresses the idea of genetically modifying animals for more efficient meat production, with one reader expressing concern about the ethical implications. Other letters touch on topics such as vegetarian food processing, the complexity of the human brain, the impact of chemicals on the skin, and the importance of equality in civility. Finally, there is a letter expressing skepticism about the practical benefits of quantum computers. [Extracted from the article]

This article from New Scientist features a collection of letters from readers on various topics. One letter discusses the genetic advantage of blue eyes, suggesting that their attractiveness may be due to both appearance and the ability to see better in low light. Another letter proposes banning the word "particle" from physics education, arguing that it leads to misconceptions about elementary particles. Other letters touch on topics such as the environmental impact of food choices, the idea of donating human bodies to polar bears for food, the cultural impact of algorithms, the success of Japan's lunar probe landing, the safety of processed foods, the practice of staking newly planted trees, the need for enhanced rural public transport, and the benefits of working from home. [Extracted from the article]

This document is a collection of letters from readers published in New Scientist. The letters cover a range of topics, including the benefits of working from home versus working in an office, the motivation to work hard in research, the potential use of supersonic cargo planes by the military, the search for a theory of everything in physics, the idea of using bone paste in food production, the possibility of some individuals having a heightened sense for pheromones, the effectiveness of taking notes with pen and paper versus using a keyboard, and the decommissioning of a fusion reactor. The letters come from various locations around the world, including Australia, New Zealand, the UK, and the US. [Extracted from the article]

This document is a collection of letters from readers published in New Scientist. The letters cover a range of topics, including personal experiences with glucose monitors, theories of everything and abstract geometry, the origins of asteroids, exercise therapy for long covid, the limitations of ancient Greek engineering, the mystery of consciousness, brain changes when playing musical instruments, the impact of climate change on extreme weather events, the subjective nature of tedious tasks, the importance of cars in rural areas, and contact information for submitting letters to the magazine. [Extracted from the article]

This document is a compilation of letters from readers that were published in New Scientist. The letters cover a range of topics, including the use of beeping shoes to improve walking ability in people with Parkinson's disease, suggestions for improving sperm count and quality, the potential use of fish waste as fertilizer, the debate over supersonic airliners and their impact on the environment, skepticism towards the quantum theory of consciousness, alternative explanations for archaeological observations, and the challenges of measuring black holes. The letters offer diverse perspectives and insights on these subjects. [Extracted from the article]

This document is a collection of letters from readers published in New Scientist. The topics covered include the benefits of different diets, the importance of social support for new mothers, the potential of electric cars to alleviate grid shortages, the nature of dark matter, the timing of the Anthropocene epoch, the complexities of addressing climate change, the use of millikelvin to measure global warming, and the potential link between COVID-19 and schizophrenia. The letters offer diverse perspectives and insights on these subjects, providing valuable information for library patrons conducting research. [Extracted from the article]

This document is a collection of letters from readers published in the New Scientist. The letters cover a range of topics, including climate change, extending human lifespans, navigation devices, geoengineering, the potential impact of a passing star on Earth, animal behavior, artificial intelligence, the true cost of products, and car culture. The letters provide diverse perspectives on these subjects, offering insights and raising questions for further exploration. [Extracted from the article]

This document is a collection of letters from readers of New Scientist magazine. The letters cover a range of topics, including migration, acne treatment, landscape conservation, the impact of road vehicles on wildlife, the definition of art, self-awareness in animals, Australian oases, grid storage solutions for renewable energy, and the demand for lithium for electric vehicles. The letters provide diverse perspectives and opinions on these subjects, offering insights and raising questions for further exploration. [Extracted from the article]

This document is a collection of letters from readers published in New Scientist. The topics discussed include the measurement of sleep duration using smart devices, the origin of life on Earth and the possibility of panspermia, the concept of pixelated space-time and its implications for understanding the multiverse, observations of animal behavior, the suitability of heat pumps for Victorian homes, the need to prevent contamination between Earth and Mars, the natural occurrence of emulsifiers in food, and the proposed name for the opening chapter of the Anthropocene epoch. The letters come from various locations including the UK, Australia, and the US. [Extracted from the article]

This document is a collection of letters from readers published in the New Scientist. The letters cover a range of topics, including the use of AI to address climate change and biodiversity loss, the validity of scientific theories regarding sperm propulsion, concerns about the impact of chatbots on critical thinking, the influence of language on mindset, the care of plants without the use of sprays, the historical prevalence of zoonotic pathogens and their potential for transmission to humans, the impact of the closure of a car factory on South Australia's electricity grid, the role of open debate in exposing falsehoods, and the consumption of ultra-processed foods. [Extracted from the article]

However, regarding the puzzle posed at the beginning - that people who listened to a debate between the US presidential nominees Richard Nixon and John F. Kennedy felt Nixon won it, whereas those who watched felt Kennedy won - there may be an explanation other than the power of gestures: Kennedy was far better-looking. Views Your letters Maybe it is time to ditch the smartphone 26 August, p 32 From Richard Hind, Chapel Haddlesey, North Yorkshire, UK When people ask me (usually in a shocked tone) why I don't carry a smartphone, I answer, half-joking, "because I teach cybersecurity". On the dilemma of crops that use a lot of water 26 August, p 36 From Averell Kingston, Sutton under Brailes, Warwickshire, UK Graham Lawton mentions foods that use most water. [Extracted from the article]

British nuclear war movie still chills me 12 August, p 30 From Mark Edwards, Brisbane, Australia It has been more than 35 years since I saw it, but seeing Simon Ings recommend the film Threads brought up memories of how horrific this fictional account of nuclear war is. Editor's pick On the call for less doom in climate messaging Leader, 19 August From John Davnall, Manchester, UK While I accept your positive idea of easing up on doom-mongering in messages about climate change, I fear your article doesn't address one of the great climate unknowns. But we really don't know how much further the warming inertia of past emissions, coupled with feedback loops such as permafrost methane release, will take temperatures once emissions cease in a carbon-neutral world. [Extracted from the article]

All hail the new drugs for treatment of obesity 15 July, p 32 From Jon Arch, Welwyn Garden City, Hertfordshire, UK I spent much of my career trying to discover drugs to treat obesity. Editor's pick AI's advances really aren't quite as great as we think 29 July, p 32 From Eric Kvaalen, Les Essarts-le-Roi, France The article on using artificial intelligence to tackle scientific challenges paints too rosy a picture of its accomplishments up to now. The matrix multiplication methods found by AI only achieve a 10 to 20 per cent improvement for certain small matrices and only when using certain hardware. [Extracted from the article]

France takes a different line over ADHD drugs 6 May, p 38 From Larry Stoter, The Narth, Monmouthsire, UK France, which is more resistant to the influence of pharmaceutical companies, tells a different story on attention deficit hyperactivity disorder. Lab-grown meat can be environmentally sound 13 May, p 11 From Liz Specht, The Good Food Institute, Washington DC, US Scientists developing cultivated meat agree that R&D-scale methods won't work for large- scale production. To deliver on cultivated meat's potential to help satisfy growing demand for meat, reduce climate impacts and create space for more sustainable farming, governments must develop sustainable, large- scale production. [Extracted from the article]

With green hydrogen you get green oxygen for free Letters, 26 November From Blaise Bullimore, Tiers Cross, Pembrokeshire, UK Christopher Jessop's advocacy of green hydrogen is spot on. From Neil Shillito, Norwich, Norfolk, UK Timberlake highlights the inertia and total absence of will of some governments to lead on climate change. This begs the question: as adopting green oxygen seems to be a no-brainer, where is the global push to jointly promote and exploit green hydrogen and green oxygen?. [Extracted from the article]

Editor's pick Life, the universe and everything - in pictures 19 November, p 14 From Paul Whiteley, Bittaford, Devon, UK There has been a lot of talk of using the power of Al to create unique images, including movies, but how about going a step further in all of this. Secondly, producing biofuel from algae rather than crop plants generates a much higher yield per hectare and, importantly, requires no agricultural land. Indeed, there is great potential for this combined strategy in tropical countries, where rows of solar panels can cover half the field, providing shade for plants and supporting rainwater harvesting. [Extracted from the article]

Editor's pick Thanks for shining light on solar's clear advantage 5 November, p 27 From, Nottingham, UK Thank goodness Michael Le Page highlights the rarely stated gap in energy yield between crops grown to produce biofuels and solar photovoltaic panels, of 50 to 110 fold. Why UK will fail to really shrink its carbon footprint 29 October, p 38 From John Cantellow, Derby, UK Sadly, I don't share Michael Le Page's optimism that the UK will eventually manage to curb carbon emissions sufficiently. A solution to the AI art copyright conundrum 8 October, p 17 From Anthony Woodward, Portland, Oregon, US You raise questions over copyright of AI-generated works. [Extracted from the article]

One estimate of how long lithium reserves would last if fusion supplied a large portion of our energy is 990 years - and that is if the metal weren't used for batteries. Geothermal energy may not win over everybody 29 October, p 16 From David Hurburgh, Opossum Bay, Tasmania, Australia The potential for geothermal energy in the UK gives cause for optimism that this carbon-free power can be exploited. Views Your letters Hopes and fears for the global climate Leader, 29 October From Kimon Roussopoulos, Cambridge, UK You say that the biggest obstacle to progress at COP27 is the energy crisis that came after Russia's invasion of Ukraine. [Extracted from the article]

Several letters to the editor are presented in response to articles including an article on infinite multiverses by Shannon Hall in the January 21, 2017 issue, an article on antimatter by Joshua Howgego and an article on autonomous vehicles by Sandy Ong, in the January 7, 2017 issue.

Several letters to the editor are presented in response to articles including an article on the Anthropocene epoch in the September 3, 2016 issue, an article on deaths related to codeine in the January 7, 2016 issue, and an article the relation of the brain to physics equations by Richard Webb in the December 10, 2016 issue.

Several letters to the editor are presented on a variety of topics including an article in the December 10, 2016 issue concerning corporate wellness programs, an article in the December 3 issue concerning geoengineering research, and research in the November 19 issue on the use of methane in food production.

Several letters to the editor are presented in response to articles in previous issues on topics, including Outer Space exploration in the October 15, 2016 issue, the replication of artificial intelligence by author Toby Walsh in the November 19, 2016 issue and the possibility of civilization collapsing by author Debora MacKenzie in the November 19, 2016 issue.

Several letters to the editor are presented in response to articles from previous issues including one on Richard Solé's proposal of harnessing synthetic biology to fix the planet Earth in the October 1, 2016 issue, one on the impending loss of Al-Sayyid Bedouin Sign Language as "a genuine shame" in the October 8, 2016 issue, and another on a probe to the planet Proxima Centurib using a laser in the October 15, 2016 issue.

Several letters to the editor are presented in response to articles in previous articles including an article speculating that the universe is in fact a digital simulation published in the September 3, 2016 issue, an article on carbon accounting and the burning of mature trees and an article on nostalgia, both in the September 24 issue.

Several letters to the editor are presented in response to articles in previous issues, including the idea of universal income, a review of Henry T. Greely's book "The End of Sex and the Future of Human Reproduction" and another on an argument that experiments on primates are a sacrifice worth making.

Several letters to the editor are presented in response to articles in previous issues including the article about the effects of walking or cycling on air pollution, the article about the implications of driverless cars, and the article about empathy all in the May 14, 2016 issue.

Several letters to the editor are presented in response to articles in the previous issues including one on the need for collecting station to catch microwave power from solar panels in space, one on the services of John Dee as mathematician and magician to Queen Elizabeth I and one on the use of light to transmit data.

Several letters to the editor are presented which include one about the possible impact of autonomous automobiles responding to a letter of March 5, 2016, two about the February 27, 1016 article by Andy Coghlan on submission to authority, and responses to the March 5, 2016 article by Julian Smith about the human microbiome cloud.

The author presents insights on stone collecting.