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Greenland's ice cap has melted past 'tipping point' – The Brussels Times

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Greenland’s ice cap has melted past ‘tipping point’




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Northern towns push to approve Elon Musk's Starlink satellite internet project – CTV Toronto

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TIMMINS —
The Federation of Northern Ontario Municipalities (FONOM) believe Elon Musk’s Starlink satellite internet program is the long-awaited solution to the region’s internet coverage issues.

As the group discussed at its recent meeting in Hearst, the program hopes to do away with the decades-long efforts and billions of dollars needed to build internet infrastructure on the ground.

FONOM’s vice-president, Paul Schoppmann, said the only roadblock is approval from the Canadian Radio-Television and Telecommunications Commission (CRTC).

“It’s the wave of the future,” Schoppmann said in an interview.

“We’ve been talking about it for the last 15 years and we’re still no further ahead for the rural communities. So this will be a game-changer, economically.”

 

Bringing high-speed internet to the entire region

The first phase of the Starlink project would have around 400 satellites orbiting the northern hemisphere, providing high-speed gigabit internet to remote and rural areas in the U.S. and Canada.

With 775 Starlink satellites currently in orbit around the planet and bi-weekly launches of 60 satellites each, SpaceX’s goal is to have the program operational by the end of 2020.

The company plans to have near-global internet coverage by the end of 2021, with an eventual 12,000 satellite fleet.

Schoppmann said bringing Starlink to Canada would be of zero cost to the federal government, with the company apparently asking for no financial support. He said that makes this an easy decision.

“We’re sending the resolution to our MPs, MPPs and the CRTC […] saying, ‘We represent 110 municipalities in the northeast,” said Schoppmann, who is also mayor of St. Charles.

“We are asking for this but let’s get it going, let’s not wait two to five years.”

 

Fulfilling a government promise

The Ontario government expressed its commitment to making sure every household and business has access to internet connections with minimum 50 Mbps download speed and 10 mbps upload.

However, a June report from Blue Sky Net shows that the average internet connection had just below 9 Mbps download and just above 5 Mbps upload.

Schoppmann said even the province’s goal of “50/10” internet speeds province-wide is not sufficient for what the average household and business needs to operate in today’s society.

He said his town has had issues connecting businesses with fibre optic internet service, which is meant to have higher internet speeds from 100 Mbps to 1.5 gigabits per second (Gbps).

 

Reaction in Timmins

Timmins city councillor John Curley, who attended FONOM’s meeting, said communities can’t wait for infrastructure to catch up while thousands require internet to operate in today’s society.

He said quick decision-making is especially crucial while many are working and learning from home during the COVID-19 pandemic.

“The cost of (building infrastructure), in time, will far exceed what we’re trying to do here by trying to bring satellite reception into people’s homes throughout the north,” Curley said.

Timmins mayor George Pirie feels governments can take quick action on this, if the willpower is there to finally follow through on their promise to rural and remote communities.

“There’s areas off of Highway 101 where you cannot get internet service, so we need that in the north — well, all parts of society,” Pirie said.

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Scientist Shows There Are Two Ways to Measure a Day on Earth – The Union Journal

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How long does it take Earth to complete a 360-degree rotation? Not quite 24 hours, it turns out – it’s precisely 23 hours and 56 minutes.

But because Earth is constantly moving along its orbit around the Sun, a different point on the planet faces the Sun directly at the end of that 360-degree spin.

For the Sun to reach the exact same position in the sky, Earth has to rotate 1 degree further.

That’s how humans have chosen to measure days: not by the Earth’s exact rotation, but the position of the Sun in the sky.

Technically, these are two different types of day. A day measured by the completion of a 360-degree rotation is called the sidereal day.

A day based on the position of the Sun, however, is a solar day. The latter is four minutes longer than the former, making the even 24 hours we’re used to.

“It’s only because we move around the Sun in an orbit that the solar day takes 24 hours,” James O’Donoghue, a planetary scientist at the Japanese space agency (JAXA), told Business Insider.

“If we didn’t orbit the Sun, both days would be the same.”

He made the below animation to show how this works. 

[embedded content]

Because we go by solar days in our calendars, we count 365 days in a year. But Earth actually completes a full rotation (a sidereal day) 366 times per year. 

O’Donoghue describes the difference between these two types of day as a matter of choosing which background object we use as a basis of comparison for Earth’s rotation. A full rotation relative to the position of the Sun is a solar day. A full rotation relative to all the other stars we see is a sidereal day. 

If we used the sidereal day instead, “the Sun would rise about four minutes earlier every day,” O’Donoghue said. “After six months of doing this, the Sun would be rising 12 hours earlier.” 

He added: “We’ve decided to tie our daily rhythm to the Sun, not the stars. In fact, the stars rise about four minutes earlier every day because of our choice.”

This article was originally published by Business Insider.

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Scientist Shows There Are Two Ways to Measure a Day on Earth – Armenian Reporter

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How long does it take Earth to total a 360-degree rotation? Not rather 24 hr, it ends up – it’s specifically 23 hours and 56 minutes.

But due to the fact that Earth is continuously moving along its orbit around the Sun, a various point on the world deals with the Sun straight at the end of that 360-degree spin.

For the Sun to reach the specific very same position in the sky, Earth has to turn 1 degree even more.

That’s how human beings have actually selected to measure days: not by the Earth’s specific rotation, however the position of the Sun in the sky.

Technically, these are two various kinds of day. A day determined by the conclusion of a 360-degree rotation is called the sidereal day.

A day based on the position of the Sun, nevertheless, is a solar day. The latter is 4 minutes longer than the previous, making the even 24 hr we’re utilized to.

“It’s only because we move around the Sun in an orbit that the solar day takes 24 hours,” James O’Donoghue, a planetary scientist at the Japanese area company (JAXA), informed Business Insider.

“If we didn’t orbit the Sun, both days would be the same.”

He made the below animation to demonstrate how this works.

[embedded content]

[embedded content]

Because we pass solar days in our calendars, we count 365 days in a year. But Earth in fact finishes a complete rotation (a sidereal day) 366 times each year.

O’Donoghue explains the distinction in between these two kinds of day as a matter of picking which background item we utilize as a basis of contrast for Earth’s rotation. A complete rotation relative to the position of the Sun is a solar day. A complete rotation relative to all the other stars we see is a sidereal day.

If we utilized the sidereal day rather, “the Sun would rise about four minutes earlier every day,” O’Donoghue stated. “After six months of doing this, the Sun would be rising 12 hours earlier.”

He included: “We’ve decided to tie our daily rhythm to the Sun, not the stars. In fact, the stars rise about four minutes earlier every day because of our choice.”

This short article was initially released by Business Insider.

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