Saudi Press

Saudi Arabia and the world
Saturday, May 10, 2025

New measures for size, as world's people surpass 8 billion

New measures for size, as world's people surpass 8 billion

What is bigger: A ronna or a quetta?
Scientists meeting outside of Paris on Friday — who have expanded the world’s measuring unit systems for the first time this century as the global population surges past 8 billion — have the answer.

Rapid scientific advances and vast worldwide data storage on the web, in smartphones and in the cloud mean that the very terms used to measure things in weight and size need extending too. And one British scientist led the push Friday to incorporate bold new, tongue-twisting prefixes on the gigantic and even the minuscule scale.

“Most people are familiar with prefixes like milli- as in milligram. But these are prefixes for the biggest and smallest levels ever measured,” Dr Richard Brown, head of Metrology at the U.K.’s National Physical Laboratory who proposed the four new prefixes, told The Associated Press.

“In the last 30 years, the datasphere has increased exponentially, and data scientists have realized they will no longer have words to describe the levels of storage. These terms are upcoming, the future,” he explained.

There’s the gargantuan “ronna” (that’s 27 zeros after the one) and its big brother the “quetta” – (that’s 30 zeros).

Their ant-sized counterparts are the “ronto” (27 zeros after the decimal point), and the “quecto” (with 30 zeros after the decimal point) -- representing the smaller numbers needed for quantum science and particle physics.

Brown presented the new prefixes to officials from 64 nations attending the General Conference on Weights and Measures in Versailles, outside of Paris -- who approved them on Friday.

The conference, which takes place every four years in France, is the supreme authority of the International Bureau of Weights and Measures. The new terms take effect immediately, marking the first time since 1991 that any new additions have been made.

Brown said the new terms also make it easier to describe things scientists already know about — reeling off a list of the smallest and biggest things discovered by humankind.

Did you know that the mass of an electron is one rontogram? And that a byte of data on a mobile increases the phone’s mass by one quectogram?

Further from home, the planet Jupiter is two just quettagrams in mass. While, incredibly, “the diameter of the entire observable universe is just one ronnameter,” Brown said.

He explained how the new names were not chosen at random: The first letter of the new prefixes had to be one not used in other prefixes and units.

“There were only the letters ‘r’ and ‘q’ that weren’t already taken. Following that, there’s a precedent that they sound similar to Greek letters and that big number prefixes end with an ‘a’ and smaller numbers with an ‘o,’” he added.

“It was high time. (We) need new words as things expand,” Brown said. “In just a few decades, the world has become a very different place.”
#ANT 
Newsletter

Related Articles

Saudi Press
0:00
0:00
Close
Cardinal Robert Prevost Elected as Pope Leo XIV, Marking a Historic Papacy
India-Pakistan conflict may be first test for Chinese military tech
Bill Gates Announces Plan to Wind Down Philanthropic Foundation and Disperse Wealth
Common Sense Returns to Britain's Legal System: UK Supreme Court Declares a Woman Is… a Woman
Warren Buffett to Step Down as Berkshire CEO After Nearly 60 Years
Trump Shares AI-Generated Image of Himself as… Pope, Prompting Outrage Reaction
Amazon Launches Satellite Internet Service Amidst Competition with SpaceX
The Rush to the White Gold: Global Investment Surge in Natural Hydrogen Exploration
Trump Administration Removes National Security Adviser Mike Waltz Amid Signal Chat Controversy
Liverpool Clinches Record-Equalling 20th English League Title Under Arne Slot
Massive Explosion at Iran's Bandar Abbas Port Linked to Suspicious Chemical Shipments
Pope Francis Laid to Rest in Rome as World Leaders Attend Funeral
Not Child’s Play: How Competitive Gaming Became a Global Economic Empire
California Surpasses Japan to Become the World’s Fourth-Largest Economy
Former U.S. Congressman George Santos sentenced to eighty-seven months for wide-ranging fraud
Israel Considers Limited Strikes on Iran's Nuclear Facilities Amid Diplomatic Efforts
Saudi Arabia Offers Max Verstappen Unprecedented Deal to Join Aston Martin
Global Pistachio Shortage Amid Rising Demand for 'Dubai Chocolate'
IMF Predicts No Global Recession Amid Trade Tensions
Worldwide Markets Decline as U.S.-China Trade Frictions Intensify
OpenAI Lands Unprecedented $40 Billion Investment
Removing the Political Adversary is Dismantling What's Remaining of Turkey's Economy.
Ex-FIFA President and French Football Icon Acquitted of Corruption Allegations
White House Investigates Security Breach After Journalist Accidentally Added to Secret Yemen Strike Chat
Volunteers in Jeddah Ensure No One Goes Hungry During Ramadan Iftar
New Restaurant Opens in Makkah's Iconic Clock Tower for Ramadan Iftar
Saudi Arabia's Project Masam Removes 552 Houthi Mines in Yemen
Saudi Arabia Fines Over 400 Foreign Trucks for Regulatory Violations
Saudi National Campaign for Charitable Work Reports Significant Donations in Ramadan
Historic Al-Hosn Al-Asfal Mosque Restored in Asir as Part of National Heritage Initiative
KSrelief Expands Humanitarian Efforts in Syria, Sudan, and Lebanon
Saudi Arabia Advocates for Global Water Cooperation at Forum
Madinah Governor Tours Islamic Arts Biennale in Jeddah
Saudi Foreign Minister in Cairo to Lead Meeting on Gaza Developments
Recognition of Saudi and Pakistani Entrepreneurs at Riyadh Ceremony
UAE Announces $1.4 Trillion Investment Plan in the United States
Saudi Arabia Innovates in Soil Quality and Water Conservation
Governor of Taif Engages with Rose and Aromatic Plants Cooperative
Saudi Food and Drug Authority Enhances Preparations for Hajj Season
Saudi Arabia Distributes Aid to Yemen and Romania
Restoration of Historic Al-Qalaah Mosque in Riyadh Underlines Heritage Preservation Efforts
Saudi Arabia Arrests Over 25,000 for Immigration Violations in One Week
UAE’s ADQ and Energy Capital Partners Announce $25 Billion Energy Venture in the U.S.
KSrelief Launches Extensive Ramadan Food Aid Initiative
Ramadan Celebrations Revitalize Historic Jeddah
Makkah Authorities Urge Worshippers to Follow Crowd Management Guidelines
Direct Flights Between Dammam and Damascus Reestablished for Syrian Residents
Saudi Main Index Rises to Close at 11,760 Amid Mixed Market Performance
Moroccan Prime Minister Aziz Akhannouch Visits Prophet's Mosque in Madinah
Cultural Development Fund Hosts Third Annual Storytellers Event in Riyadh
×