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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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COVID-19: Okanagan resort closes temporarily after staffer tests positive – Revelstoke Review

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Sparkling Hill Resort is closing for 11 days Friday after a staff member tested positive for COVID-19.

The popular tourist destination said its immediate closure effective Friday, Oct. 30, is a proactive and precautionary measure.

“Due to the extensive COVID-19 plan in place at the resort, Interior Health confirmed there is no concern for any guests that stayed recently,” the resort said in a statement.

The individual contracted the novel coronavirus outside the resort and immediately self-isolated. Any other staff members who were in close contact with the affected member of staff have been identified and contacted by the regional health agency with information and advice.

The resort will resume operations Monday, Nov. 9.

Any guests who have upcoming reservations will be contacted and provided with options.

“The health and safety of our staff, guests and community are a top priority,” the statement reads. “While the closure is not required by Interior Health, the immediate actions are taken to ensure there is no further spread of the virus.”

In September, the resort was notified a guest that had recently visited had tested positive for COVID-19 (Sept. 3).

READ MORE: COVID-19 case confirmed at Vernon’s Sparkling Hill Resort

READ MORE: Hunters free themselves from rollover on Westside


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Caitlin.clow@vernonmorningstar.com

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COVID-19: Okanagan resort closes temporarily after staffer tests positive – Summerland Review

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Sparkling Hill Resort is closing for 11 days Friday after a staff member tested positive for COVID-19.

The popular tourist destination said its immediate closure effective Friday, Oct. 30, is a proactive and precautionary measure.

“Due to the extensive COVID-19 plan in place at the resort, Interior Health confirmed there is no concern for any guests that stayed recently,” the resort said in a statement.

The individual contracted the novel coronavirus outside the resort and immediately self-isolated. Any other staff members who were in close contact with the affected member of staff have been identified and contacted by the regional health agency with information and advice.

The resort will resume operations Monday, Nov. 9.

Any guests who have upcoming reservations will be contacted and provided with options.

“The health and safety of our staff, guests and community are a top priority,” the statement reads. “While the closure is not required by Interior Health, the immediate actions are taken to ensure there is no further spread of the virus.”

In September, the resort was notified a guest that had recently visited had tested positive for COVID-19 (Sept. 3).

READ MORE: COVID-19 case confirmed at Vernon’s Sparkling Hill Resort

READ MORE: Hunters free themselves from rollover on Westside


@caitleerach
Caitlin.clow@vernonmorningstar.com

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Well-known Okanagan resort voluntarily closes following positive COVID-19 test – Global News

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One of the Okanagan’s better-known resorts has temporarily closed its doors following a positive COVID-19 test.

In a statement issued Friday, Sparkling Hill Resort in Vernon said it was closing for 11 days following a positive test by a staff member.

The closure was effective immediately, Friday, Oct. 30, and was being called a “proactive and precautionary measure” for the continued safety of its guests, staff and vendors.

Read more:
B.C. adds 272 new COVID-19 cases, grants powers for region-specific health orders

“The precaution comes as a result of Interior Health informing the resort on Oct. 30 of a confirmed case of COVID-19 with one staff member,” the resort said.

According to the resort, the staff member contracted COVID-19 outside of the resort and started self-isolating immediately.

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It added that “due to the extensive COVID-19 plan in place at the resort, Interior Health confirmed there is no concern for any guests that stayed recently.”


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The resort also said staff members who had been in close contact with the affected staff member have been identified and contacted by Interior Health.

The resort expects to resume operations on Monday, Nov. 9, adding that the closure was voluntary and not required by Interior Health.

Contacted by Global News, Interior Health said that it has not ordered any businesses to close, adding they may choose to close on their own.


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