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The speed of light in a vacuum is the ultimate cosmic speed limit. Just getting close to it causes problems: the weird distortions of Einstein’s relativity kick in, so time slows down, lengths go up, masses balloon and everything you thought was fixed changes. Only things that have no mass in the first place can reach light speed – photons of light being the classic example. Absolutely nothing can exceed this cosmic max.We have known about the special nature of light speed since an experiment by US physicists Albert Michelson and Edward Morley in the 1880s. They set two beams...

This then is the message which we have heard of him, and declare unto you, that God is light, and in him is no darkness at all.(I John 1:5)As we noted earlier, John’s ministry is a ministry of restoration. The faith has been frayed, tangled and torn to the point where the believers whom John addressed were confused as to who knew God genuinely and who didn’t. What does it mean to “know him who is from the beginning”? To “be strong and have the Word of God abiding in you”? Most importantly, who is the God and Father of...

9/19/16. Yesterday’s events and the saber rattling of the enemy about the future are meant to make us afraid, but the Lord says, "Do not fear." “And the Angel of God, who went before the camp of Israel, moved and went behind them; and the pillar of cloud went from before them and stood behind them. So it came between the camp of the Egyptians and the camp of Israel. Thus it was a cloud and darkness, and it gave light by night, so that the one did not come near the other all that night.” Exodus 14:19-20. The pillar...

Breakthrough Starshot is one of the more exciting scientific ideas that has popped up in the past decade, with its promise to deliver hardware to the nearest star in time for many people currently alive to see it. While the idea would work on paper as an extrapolation of existing technology, there are a lot of details that need to be thoroughly checked out, because it’s possible that one of them could present a show-stopper. There’s a bit of good news there: Breakthrough Starshot is apparently funding the needed research to give its concept a thorough vetting. A recent posting...

The luminous glow of light pollution prevents nearly 80 percent of people in North America from seeing the Milky Way in the night sky. That's according to a new atlas of artificial night sky brightness that found our home galaxy is now hidden from more than one-third of humanity.

Ever since Democritus... argued that all of existence was made up of tiny indivisible atoms, scientists have been speculating as to the true nature of light. Whereas scientists ventured back and forth between the notion that light was a particle or a wave until the modern, the 20th century led to breakthroughs that showed that it behaves as both. These included the discovery of the electron, the development of quantum theory, and Einstein’s Theory of Relativity. However, there remains many fascinating and unanswered questions when it comes to light, many of which arise from its dual nature. For instance, how...

As 2016 takes off, hope seems hard to find—the stock market diving, Shiites and Sunnis rattling sabers in the Middle East, North Korea announcing nuclear advances. By the headlines, you'd swear the world is falling apart! Challenged by my Christian speaker buddies to pick a word focus for 2016, I chose the word "light." Jesus loved light imagery. He claimed, "I am the light of the world." He challenged believers, "You are the light of the world. A city set on a hill cannot be hidden; nor does anyone light a lamp and put it under a basket, but on...

With a sense of disgust, but of course not of surprise, Yours Truly reads all those paid bloggers, and paid journalists, who are now trying to minimise the gravity of what has happened two days ago. They all perfectly well know that their grand-grandmothers, and all their ancestors before them, would have been utterly horrified at such an exercise; but they consider themselves smarter than their grand-grandmothers, and are therefore not bothered (or else they are prostitutes; one of the two). I do not know whether the grand-grandmothers were smarter, though they very probably were; what I know is that...

Again at the local cemetery and at the grave site of a American pilot, Captain Michael Scott Speicher, a veteran of the (Golf war of Iraq); first pilot shot down and his remains were found in the desert of Iraq about 18 years later. Beginning and end of this video a flock of Canadian Geese stopped to rest and eat. The shot hymn in this video is; ( Hallelujah Thine The Glory ).

"Vatican, World Bank partner to launch Year of Mercy with St. Peter's 'climate change' light show" The Catholic Church, founded to shed the light of Christ on the world, has quite literally invited the world to shed its light on her. On December 8, the Feast of the Immaculate Conception as well as the opening of the Extraordinary Jubilee of Mercy, Pope Francis has allowed climate-change partisans and population-control advocates to project a light show onto the facade and cupola of Saint Peter's Basilica in Rome - the most important church in the Catholic world - so as to "inspire...

"Blessed are You, Hashem, our God, King of the Universe, Who forms light and creates darkness, makes peace and creates all." (Shacharis prayer) Like anything written by Chazal, these words are filled with eternal significance. What do they have to do with Chanukah? Plenty. What is darkness? Is it simply the absence of light or does it have substance in itself? Darkness is associated with suffering. "In the evening one lies down weeping, but with dawn . . . a cry of joy" (Tehillim 30). In Mitzrayim, during the ninth plague, the darkness was so thick it prevented the Egyptians...

Your days are not ending they are merely flowing into Me.So don't worry in trying to catch up for you have already arrived, Just be seated in my righteousness and dwell in my glory with the understanding that the fullness of my spirit is with you as I AM your heartbeat and breathe so I own you for you have given your life to me. So now just rest in me as I complete my agenda for I AM your daily bread, counselor and King . . . Matthew 11:27-30 27 All things have been entrusted and delivered to Me...

Photonic devices, which use light to transport large amounts of information quickly, have the potential to enhance or even replace the electronic devices that are ubiquitous in our lives today. But before such optical connections can be integrated into telecommunication systems and computers, researchers need to make it easier to manipulate light at the nanoscale. A new on-chip zero-index metamaterial makes this possible, opening the door for technological innovation and research. This new metamaterial was developed in the lab of Eric Mazur at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS), and is described in the...

Rosh Hashana is coming up. "Head of the year" But what makes it the head, the "first" day of the year. Especially perplexing since in Jewish tradition, it is celebrated on the 6th day of creation, the day Adam was formed, gained knowledge of himself and his Creator-- and "coronated" Him as his King. This was Rosh Hashana. ...It follows then, that now, today, 5 days prior to Rosh Hashana, would be the first day of creation. Therefore: Happy Let There Be Light day!

A startup team calls their work a product. They also call it a social movement. Many people in the over-7,000 islands in the Philippines lack access to electricity .The startup would like to make a difference. Their main ingredient is salt. Their product is a lamp that takes two tablespoons of salt and a glass of water in order to work. This is from the Sustainable Alternative Lighting, or SALt Corp. This is a startup focused on delivering a cost effective, environmentally safe lamp that runs on salt water. Their lamp could be an alternative to kerosene/battery powered lamps and...

<p>AP) -- Scientists say they have identified an ocean sponge living in the darkness of the deep sea that grows thin glass fibers capable of transmitting light better than industrial fiber optic cables used for telecommunication.</p> <p>The natural glass fibers also are much more flexible than manufactured fiber optic cable that can crack if bent too far.</p>

Visit another world without ever leaving your yard. A NASA website gives you the time of day when light on Earth is the same as you would see on Pluto.You can't fly to Pluto. You will never have the opportunity to set foot on its inhospitable surface. It took NASA's New Horizons spacecraft over nine years just to get close. Don't let this deter you from experiencing a little bit of Pluto back here on Earth. NASA has unveiled a "Pluto Time" website that helps space fans replicate the light conditions on the dwarf planet from any location in the...

Light behaves both as a particle and as a wave. Since the days of Einstein, scientists have been trying to directly observe both of these aspects of light at the same time. Now, scientists at EPFL have succeeded in capturing the first-ever snapshot of this dual behavior. Quantum mechanics tells us that light can behave simultaneously as a particle or a wave. However, there has never been an experiment able to capture both natures of light at the same time; the closest we have come is seeing either wave or particle, but always at different times. Taking a radically different...

Why is Christmas a Nighttime Event? By: Msgr. Charles PopeO Holy night! Yes, a silent night! And it came upon a midnight clear. Christmas, it would seem, is a festival of the middle of the night. Jesus is born when it is dark, dark midnight. We are sure of it. And why not?Even though we are not told the exact hour of His birth, we are sure it must have been at night. Scripture does say that the shepherds who heard the glad tidings were keeping watch over their flock “by night” (cf Luke 2:9). Further, the Magi sought him...