Letters to Editor - The Hindu BusinessLineSENSEX 80,567.71+ 409.83NIFTY 24,715.05+ 135.45CRUDEOIL 5,633.00 -153.00GOLD 106,829.00+ 1,037.00SILVER 123,708.00+ 1,067.00SENSEX 80,567.71+ 409.83NIFTY 24,715.05+ 135.45NIFTY 24,715.05+ 135.45CRUDEOIL 5,633.00 -153.00CRUDEOIL 5,633.00 -153.00GOLD 106,829.00+ 1,037.00'; } document.getElementById("lgdv").innerHTML = htmlElements; } function numberformat(i) { return Number(parseFloat(i).toFixed(2)).toLocaleString('en', { minimumFractionDigits: 2 }) } async function gatherResponse(response) { const { headers } = response; const contentType = headers.get('content-type') || ''; if (contentType.includes('application/json')) { return await response.json() } return response.text(); } function getWidth() { if (Math.max(document.body.scrollWidth,document.documentElement.scrollWidth,document.body.offsetWidth,document.documentElement.offsetWidth,document.documentElement.clientWidth) > 991) { document.getElementById("mob").style.display = "none"; document.getElementById("lgdv").style.display = "block"; } else { document.getElementById("mob").style.display = "block"; document.getElementById("lgdv").style.display = "none"; } } getWidth();]]>Updated - September 03, 2025 at 09:30 PM.Durability of smartphonesWith reference to ‘Smartphone durability is now a key priority for users, says research’ (September 3), smartphone has become the “second skin” for people and is an indispensable gadget. Though it is an essential gadget for almost everyone, the majority of the smartphone users, being from the lower and middle classes, cannot afford to change the instrument even once or twice in their lifetime, let alone whenever a new version comes in the market, due to cost considerations.Firstly, smartphone manufacturers should ensure that instruments, including the screen, are sturdy to withstand any fall and water resistant. Battery issues, including overheating of instrument, are common and should be addressed at the outset itself by ensuring their quality and durability. Every instrument manufactured should have charging-limit provision and auto-off after 100 per cent charging, as a safety feature to protect the battery, instrument and prevent overheating. Smartphone manufacturers may supply a silicone phone case along with the instrument to ensure that overheating issues can be reduced.Kosaraju ChandramouliHyderabadIndia-Japan tiesThis refers to ‘Warming up to Japan’ (September 3). Amid Trump’s tariff war both India and Japan need each other to further strengthen our historic ties. A 10-year clear roadmap was launched with Japan pledged to invest $68 billion in semiconductors, rare earths, clean energy and digital technology. This visit strengthens India as a manufacturing and innovation hub while giving Japan reliable and skilled manpower. It is a welcome development that ISRO and JAXA will work closely on the upcoming Chandrayaan-5 mission.Bal GovindNoidaSemiconductor pushApropos ‘India’s smallest chip will drive world’s biggest change: PM’ (September 3). These tiny engineering marvels have become the backbone of modern electronics, powering everything from laptops and smartphones to industrial machinery and medical devices. Artificial intelligence, quantum computing and 5G technology rely on the innovative prowess of semiconductor industry. India is aiming at becoming a global semiconductor hub. By overcoming the challenge and embracing the opportunities that lie ahead, semiconductor chips will pave the way for the future, filled with even more technological breakthroughs.P Victor SelvarajPalayamkottai, TNPublished on September 3, 2025Sign into Unlock benefits!Access 10 free stories per monthAccess to comment on every storySign up/Manage to our newslettersGet notified by email for early preview to new features, discounts & offers${ ind + 1 } ${ device }Last active - ${ la }