Why don鈥檛 dogs look up when a low-flying plane or helicopter passes overhead? I鈥檝e never seen one do this.
Tony Hersh
Newbury, Berkshire, UK
Advertisement
What changes will occur on Earth as the moon moves further away from us?
John Grant
Shelly Beach, Queensland, Australia
Last Word is New Scientist鈥檚 long-running series in which readers give scientific answers to each other鈥檚 questions, ranging from the minutiae of everyday life to absurd astronomical hypotheticals. To answer a question or ask a new one, email lastword@newscientist.comTo answer this question 鈥� or ask a new one 鈥� email lastword@newscientist.com.
Questions should be scientific enquiries about everyday phenomena, and both questions and answers should be concise. We reserve the right to edit items for clarity and style. Please include a postal address, daytime telephone number and email address.
The use of AI tools (e.g. ChatGPT, Claude) to write either questions or answers is forbidden, and any submissions found to have been written using AI tools will be withdrawn.