Skip to content
Catholic Online Logo

By Marshall Connolly, Catholic Online (NEWS CONSORTIUM)

3/25/2013 (3 years ago)

Catholic Online (www.catholic.org)

Have you got an attosecond for this? Light does.

So, it seems the speed of light isn't quite constant after all. Two new studies published in the European Physical Journal D suggests that the speed of light in space isn't quite constant after all. The understanding is that space is not quite the perfect vacuum which it is often assumed to be.

The speed of light might not be all that.

The speed of light might not be all that.

Highlights

By Marshall Connolly, Catholic Online (NEWS CONSORTIUM)

Catholic Online (www.catholic.org)

3/25/2013 (3 years ago)

Published in Technology

Keywords: Speed of light, attosecond, physics, constant, vacuum


LOS ANGELES, CA (Catholic Online) - The current laws of physics says that light travels approximately 186,000 miles per second in a vacuum. That's been a handy fact that has allowed scientists to calculate the distances to faraway objects and to conduct other research with great accuracy. However, that measurement assumes that space is a vacuum.

It isn't. Space is filled with tiny subatomic particles which although extremely diffuse, can theoretically slow down light just a tiny bit. How tiny? About 50 attoseconds per square meter of crossed vacuum. An attosecond is a one quintillionth (10^-18) of a second.

An attosecond is to a second what a real second of time is to 31.71 billion years. So that's not a lot of egg on the face of physics. Still, over very great distances light from distant objects could be slowed just slightly.

That slowing isn't enough to impact any currently accepted theories regarding physics, but it still suggests that even the most reliable of yardsticks may be variable after all. Very minor changes to currently accepted understandings may be required, but since the changes are so slight they might not be significant, and therefore unworthy of much modification.

The greatest change might be to textbooks, which will need to add a caveat that the speed of light is constant, only in a true vacuum-which space isn't.

The findings must still survive peer review before that happens.

---


Pope Francis: end world hunger through 'Prayer and Action'


Copyright 2016 - Distributed by THE CALIFORNIA NETWORK

Pope Francis Prayer Intentions for May 2016
Universal:
Respect for Women: That in every country of the world, women may be honored and respected and that their essential contribution to society may be highly esteemed.
Evangelization: Holy Rosary: That families, communities, and groups may pray the Holy Rosary for evangelization and peace.



Comments


More Technology

DISLIKE: Facebook blames Zuckerberg bias on employees, promises to retrain Watch

Image of It's the employees, never the boss, who is responsible.

By Marshall Connolly (CALIFORNIA NETWORK)

Facebook has announced they will retrain employees responsible for curating their news content. The social networking giant has been accused of censoring news and content with a conservative slant in favor of liberal content. LOS ANGELES, CA (California Network) - ... continue reading


Think again! Soon, EVERY job will be taken by robots Watch

Image of In the future, every job will be performed by a robot. Robots will even repair and design other robots. What happens when human labor becomes obsolete?

By Marshall Connolly (CALIFORNIA NETWORK)

All healthy, well adjusted people want to work. It's hardwired into our DNA to build, to produce, to gather, grow and trade. Without this impulse, our species could never have built civilization. But what happens when an essential part of our being becomes obsolete? ... continue reading


We are THIS close to finding life on another planet Watch

Image of The James Webb Space Telescope may bring us the answers we seek regarding life in the universe.

By Marshall Connolly (CALIFORNIA NETWORK)

Scientists have announced the discovery of three planets in the habitable zone of a star just 39 light years away. Such planets have the potential to host life, making them targets for future study. LOS ANGELES, CA (California Network) - Are scientists about to ... continue reading


Chinese invent robots that can beat humans at soccer Watch

Image of Chinese robots are now beating humans at their own game.

By Marshall Connolly (CALIFORNIA NETWORK)

Earlier this year, a robot beat a master player at the ancient game of Go. Now, robots are beating humans at soccer. Armies of engineers are working around the world to develop artificial intelligence and robots that can do what humans do, only better. They're making ... continue reading


Top Secret Area 51 on fire - film footage captures mysterious mushroom cloud, armed security at base Watch

Image of What just happened in the secretive Area 51?

By Marshall Connolly (CALIFORNIA NETWORK)

UFO watchers have spotted a mysterious mushroom-shaped cloud over Area 51. The cause of the cloud remains unknown, but it is evidently connected to a fire at the secret military base. Viewers were unable to obtain direct footage of whatever caused the inferno, due to ... continue reading


AI shoots to kill: Will robots rule the world? Watch

Image of Researchers believe Artificial Intelligence can lead to the extinction of all humanity (Terminator 2).

By Kenya Sinclair (CALIFORNIA NETWORK)

After Microsoft's failure with AI teen "Tay," it should come as no surprise that more and more researchers are agreeing artificial intelligence requires a delicate balance between helpful tech and murderous exterminators. LOS ANGELES, CA (Catholic Online) - According ... continue reading


New machine about to replace ALL fast food workers -- and why that's awesome! Watch

Image of Several companies are developing machines and robots that can replace legions of low-wage, low-skilled workers. The cost savings would be tremendous. It would also be of benefit to the workers themselves, a least in the long run.

By Marshall Connolly (CALIFORNIA NETWORK)

Fast food workers, say goodbye to that grimy job with surly guests and overbearing managers. Your fight for $15 is over. No, you didn't win, someone has invented a machine that makes hamburgers better and faster than you do. LOS ANGELES, CA (California Network) - ... continue reading


Extraordinary life-changing surgery allows paralyzed man to regain body control Watch

Image of Chip implant helps paralyzed man move arm and even play guitar (Screenshot/Ohio State University).

By Kenya Sinclair (CALIFORNIA NETWORK)

Ian Burkhart underwent experimental brain surgery to help scientists pioneer technology aimed at reanimating paralyzed limbs - and it worked! LOS ANGELES, CA (Catholic Online) - Six years ago, Burkhart severed his spine when he went for a swim and was slammed into a ... continue reading


Would you eat a pizza delivered by a robot? Customers in New Zealand already can... How will this affect you? Watch

Image of Within a few years, your pizza may be delivered by robot.

By Marshall Connolly (CALIFORNIA NETWORK)

Robots will soon begin to deliver your mail, pizza, and other parcels within the next few years. Plans are being developed around the globe to test, then roll out automated delivery systems for everything from packages, to mail to pizza. The rising demand for delivered ... continue reading


Singapore tech shames Google - Here's why we're all looking forward to it! Watch

Image of Singapore is home to the most advanced autonomous car (asiawebdirect).

By Monique Crawford (CALIFORNIA NETWORK)

After securing $3.6 million to fund an up-and-coming piece of technology, an MIT-spinoff company based in Singapore shames Google's driverless car. LOS ANGELES, CA (Catholic Online) - With news of self-driving taxis popping up across the internet, it should come as no ... continue reading


All Technology News

Newsletters

Newsletter Sign Up icon

Stay up to date with the latest news, information, and special offers

Subscribe to Catholic OnlineYouTube Channel

the FEED
by Catholic Online

Daily Readings

Reading 1, First Peter 1:10-16
10 This salvation was the subject of the search and investigation of the ... Read More

Psalm, Psalms 98:1, 2-3, 3-4
1 [Psalm] Sing a new song to Yahweh, for he has performed wonders, his ... Read More

Gospel, Mark 10:28-31
28 Peter took this up. 'Look,' he said to him, 'we have left everything ... Read More

Saint of the Day

Saint of the Day for May 24th, 2016 Image

St. David I of Scotland
May 24: David, the youngest son of Scotland's virtuous ... Read More