Science

Science 6 min One sky, three verdicts: why Singapore says unhealthy and Malaysia says moderate The same 70 micrograms of fine particulate reads 116 on Singapore's PSI, 96 on Malaysia's API and 161 on the U... NA Nadia Rahim 4 Sep Science 7 min Your CO2 monitor's red line is a 19th-century number, and it is drifting The 1000 ppm line is Pettenkofer's, proposed in the 19th century as a proxy for whether a room smelled stuffy.... NA Nadia Rahim 3 Sep Science 7 min Leap seconds end on 20 May 2027, and the Earth has already turned around The committee that has inserted 27 leap seconds since 1972 is proposing to stop, and to let clock time drift u... NA Nadia Rahim 3 Sep Science 6 min Mitochondrial DNA does not use the genetic code you were taught Four codons differ between the standard genetic code and the one your mitochondria use, and two of them are st... NA Nadia Rahim 1 Sep Science 7 min Why your DNA ancestry estimate is vaguer if you are Asian A result full of "Broadly" labels is telling you something real, but not about your ancestry. One company's ow... NA Nadia Rahim 31 Aug Science 5 min When a DNA match could be your grandparent or your half-sibling A match sharing around 1,700 centimorgans could be a grandparent, an aunt or uncle, or a half-sibling. The ave... NA Nadia Rahim 31 Aug Chinese Culture 5 min Mid-Autumn is two days before the full moon this year The festival lands on 25 September and the moon reaches full on the 27th. The gap is larger than usual, it is... EV Eva Chin 31 Aug Science 8 min Caltech Got Fibre-Grade Optical Loss Onto A Silicon Chip Optical loss is what has kept chip-scale photonics far behind optical fibre. A Caltech group put the fibre mat... NA Nadia Rahim 23 Aug Science 7 min Why a 1,000-Qubit Computer Has Zero Usable Qubits Physical qubits and logical qubits are different currencies. At current error rates one logical qubit costs ab... NA Nadia Rahim 18 Aug Science 7 min How Much Faster Is Quantum Search, Actually? We ran Grover's algorithm and counted the oracle calls. Over 4,096 items it looked 50 times against a classica... KE Kenji Tanaka 18 Aug Science 6 min What Is a Qubit, Really? A qubit is not a bit that is both values at once. We built a simulator and measured what actually separates on... NA Nadia Rahim 18 Aug Science 7 min What Actually Decides When Caffeine Wears Off Coffee at four, still awake at midnight? The usual answer is that a substance is gone after ten half-lives — a... NA Nadia Rahim 15 Aug Science 6 min Why Isn't the Periodic Table Sorted by Weight? The periodic table is not ordered by weight. Walk our own 118-element data from hydrogen to oganesson and the... NA Nadia Rahim 15 Aug Science 6 min Why the Voltage-Drop Limit Is Really an Efficiency Limit The voltage-drop limit in every wiring code reads as a performance rule. The current cancels, so the share of... NA Nadia Rahim 14 Aug Science 9 min Significant Figures: The Digits Your Calculator Invents We audited our own science calculators against the precision their inputs actually justify. Across 768 multipl... NA Nadia Rahim 13 Aug Science 5 min What a Punnett Square Cannot Tell You The square says three-to-one, and the lesson usually adds that in a family of four, three children will show t... NA Nadia Rahim 12 Aug Sustainability 6 min Nuclear Reactors Are Going to Sea. Nobody Has Agreed Who Licenses Them. The IAEA launches ATLAS in Washington this month, covering nuclear-powered ships and floating power plants. Th... RE RECATOOLS Editorial 11 Aug Science 7 min A Rocket Stage Hit the Moon. South Korea Was Overhead With a Camera. Danuri made eight passes over the predicted impact point, starting half an hour early, with reference frames t... NA Nadia Rahim 11 Aug Science 7 min Japan Launched Its Seventh Navigation Satellite. It Is Flying Six. MICHIBIKI No. 7 reached orbit on Tuesday morning, completing the launch manifest for a seven-satellite design.... NA Nadia Rahim 11 Aug Science 8 min How to Size a Cable: the Six Checks, and the Three People Skip Picking a cable looks like one lookup — find the current, read the size off a table. That answer is right in a... NA Nadia Rahim 8 Aug Science 8 min Dilute It Tenfold. The pH Moves One Unit, or None at All. C1V1 = C2V2 looks like arithmetic but is a physical claim with four assumptions inside it. Dilute a strong aci... NA Nadia Rahim 7 Aug