Jan 16, 2009
As Newton said, the whole ocean of truth is still out thereBack
United States|International Space Station|Mount Wilson Observatory|Christmas|Energy|Jet Travel|Mount Wilson Observatory|California Institute Of Technology|Bill Clinton|Fritz Zwicky|Hendrik Casmir|Isaac Newton|Kent Ford|Sinclair Smith|Steven Lamoreaux|Vera Rubin
© Reuse this
People said that the basic colour was ‘black on white’. The artist replied: “No, it is not black – it is midnight blue.” The group said it was black and the artist insisted it was midnight blue, and an argument ensued. I sat still and listened as it became more heated.
I decided that the artist was right. I had two reasons – the first was that he had studied the subject and so knew more about it than the rest of us, so we should respect his professionalism. Secondly, from a physics point of view, the midnight sky is dark but not black – it is suffused with a scatter of starlight from billions of stars.
So I put up my hand, entered the discussion and announced that the artist was right. That stopped the argument and the artist was really relieved. He later thanked me for saving his pride. That was an interesting learning experience for me too – to remember to respect the professionalism of others, even when an answer seems obvious to those not trained in the subject.
Before Christmas, I looked up into the night to watch the International Space Station (ISS) race across the sky. In fact, it seems to lazily drift across the star-studded background but, in reality, it is travelling at a tremendous speed, a speed that makes international jet travel appear to be a snail’s pace.
I knew exactly where to look and at what time and, exactly on time, the ISS appeared. It is emotional, because one knows that there are people up there looking down. I mentally waved and thought: “Hi guys, I wish I were up there with you.”
When Bill Clinton was President of the US,
I personally asked him to arrange a flight in the space shuttle for me, and he said he would tell the people concerned, which he then did as I stood there. Well, heck, I can hope, can’t I? I hoped that one of those aides would somehow filter my name back to the people who take such decisions.
During the early 1930s, Fritz Zwicky, a professor of astronomy at the California Institute of Technology, realised that faraway galaxies were moving “too fast” for the maths.
Zwicky was very hung up on symmetry, and he referred to people he did not like as ‘spherical’ bastards – ‘spherical’ because they were bastards, “whichever way you looked at them”.
By 1936, corroborating evidence had been found by Sinclair Smith, of the Mount Wilson Observatory. Over the next 30 years, the evidence mounted, but it was astronomers Vera Rubin and Kent Ford who clinched the case. The conclusion was reached that the universe is full of ‘dark matter’.
Famously, one cannot see a black cat in the dark, but this is not the case with dark matter. We cannot see it because we cannot see it – we don’t know why. It is not a case of it being invisible because no light is shining on it. So we still have to find out what it actually is. But it is there.
These particles grew to become galaxies as eons of time passed. So all the galaxies, stars, planets and our bodies came from nothing less than a quantum jitter.
This means that photons of energy suddenly appear out of nowhere, for a moment, and then disappear back into nowhere. This is happening all the time. Wow!
Dutch physicist Hendrik Casmir figured out how vacuum fluctuations of the electromagnetic field could actually be detected. In 1977, Steven Lamoreaux, of the University of Washington, experimentally confirmed Casmir’s predictions. So empty space is teeming with quantum activity.
As a new year unfolds, there are great volumes of wonderful stuff to explore and discover. Many great, wondrous revelations are still waiting in the wings to spring onto the stage of understanding.
Over 300 years ago, Isaac Newton said: “The whole ocean of truth is still out there.” It is still the case.
Edited by: Martin Zhuwakinyu© Reuse this Comment Guidelines (150 word limit)
Other Dr Kelvin Kemm News
Updated 38 minutes ago E-tolling Gauteng's highways has failed and the system falls short of its intentions, the Opposition to Urban Tolling Alliance (Outa) said on Tuesday. "This system is falling far short of its intentions and targets," Outa chairperson Wayne Duvenage told public...
Updated 51 minutes ago Fuel cell products provider Ballard Power Systems has appointed Randall MacEwen as president and CEO, effective October 6, replacing John Sheridan, who is retiring after serving as the company’s president and CEO since 2006. Sheridan would continue to serve as an...
Updated 1 hour 14 minutes ago Sub-Saharan Africa’s digital revolution was not set to get under way – it had already started, Ericsson VP for strategy, marketing and communication Tumi Sekhukhune told delegates at the Southern Africa Telecommunication Network and Application Conference...
Recent Research Reports
Road and Rail 2014: A review of South Africa's road and rail infrastructure (PDF report)
Creamer Media’s Road and Rail 2014 report examines South Africa’s road and rail transport system, with particular focus on the size and state of the country’s road and rail network, the funding and maintenance of these respective networks, and the push to move...
Real Economy Year Book 2014 (PDF Report)
This edition drills down into the performance and outlook for a variety of sectors, including automotive, construction, electricity, transport, steel, water, coal, gold, iron-ore and platinum.
Real Economy Insight: Automotive 2014 (PDF Report)
This four-page brief covers key developments in the automotive industry over the past 12 months, including an overview of South Africa’s automotive market, trade figures, production and the policies influencing the sector.
Real Economy Insight: Construction 2014 (PDF Report)
This five-page brief covers key developments in the construction industry over the past 12 months. It provides an overview of the sector and includes details of employment in the sector, infrastructure and municipal spending, as well as insight into companies’...
Real Economy Insight: Electricity 2014 (PDF Report)
This five-page brief covers key developments in the electricity industry over the past 12 months, including details of State-owned power utility Eskom’s generation activities, funding and tariffs, independent power producers and prospects for the sector.
Real Economy Insight: Road and Rail 2014 (PDF Report)
This six-page brief covers key developments in the road and rail industries over the past 12 months, including details of South Africa’s road and rail network and prospects for both sectors.
This Week's Magazine
South African State-owned defence industrial group Denel has announced its fourth consecutive year of profits. The group's results for the financial year 2013/2014 were recently announced at its head office in Centurion, south of Pretoria. Revenues grew by 17%, net...
There is little opportunity for JSE-listed infrastructure company Group Five to grow shareholder value in the domestic market, says CEO Mike Upton. He says value can still be found in the private sector, in the renewable and industrial power sector, as well as in...
The National Association of Automobile Manufacturers of South Africa (Naamsa) has announced the event dates of the 2015 Johannesburg International Motor Show (JIMS). The event will take place from October 14 to October 25, 2015, at the Johannesburg Expo Centre, Nasrec.
UK engineering support services provider Babcock is set to deliver the largest order of global truck manufacturer DAF’s truck tractors in Southern Africa to bulk carrier road-based logistics company Ngululu Bulk Carriers (NBC), with 133 trucks to be delivered in...
Digital radio communications in the African local government space can open up the world, but have many challenges to overcome, notes integration and migration of legacy radio communications infrastructure with digital mobile radio company Emcom Wireless head of...