Connect with us

Science

Why your compass points in a different direction than it used to – Newshub

Published

on


compass

Magnetic north is on the move.

Photo credit: Getty

It’s probably not a move many Canadians would make, but the magnetic north pole is ditching the North American country in favour of Russia.

And it’s moving in such a hurry, scientists from around the world have had to set up a new map of the world’s magnetic field a year ahead of schedule, so things like GPS and other navigation services will keep working properly.

This week saw the release of the updated World Magnetic Model, which wasn’t due to be done until next year. It was last refreshed in 2015, but the pole has been travelling at 55km/h in a straight line, baffling scientists. 

“Since its first formal discovery in 1831, the north magnetic pole has traveled around 2250km,” the US National Centers for Environmental Information said in a statement.

“This wandering has been generally quite slow, allowing scientists to keep track of its position fairly easily. Since the turn of the century, this speed has increased.”

It’s now crossed the Prime Meridian – meaning compasses in London which previously pointed slightly west of true north now point slightly east. 

The Earth’s magnetic field is produced by the churning of liquid metals inside the Earth. As things inside the Earth change, so do the poles.

“It didn’t move much between 1900 and 1980 but it’s really accelerated in the past 40 years,” British Geological Survey scientist Ciaran Beggan told Reuters earlier this year, when scientists realised they had a problem.

The new model was going to be done earlier this year, but was postponed when US President Donald Trump shut down the government

It’s believed every few hundred thousand years, the poles completely reverse – it can happen as quickly as a single human lifetime – but it’s not clear what effect this would have on life such as birds, which rely on it for navigation.

The south magnetic pole has barely moved, deepening the mystery for scientists. 

Let’s block ads! (Why?)



Source link

Continue Reading

Science

Ontario reports 29 new COVID-19 cases in schools, totalling 238 cases – OurWindsor.ca

Published

on




Ontario reports 29 new COVID-19 cases in schools, totalling 238 cases | OurWindsor.ca

Top Stories

Top Stories

Let’s block ads! (Why?)



Source link

Continue Reading

Science

Is there really life on Venus? How do we find out? – KitchenerToday.com

Published

on


Last week, an unlikely research project made a startling discovery: Phosphine gas in the atmosphere of Venus. That’s something that, as far as we know, is created by living organisms. Our efforts to find signs of life on other worlds, and a lot of our space dreaming in general, tend to focus on Mars. But all of a sudden we need to take a closer look at our other planetary neighbour.

So how can we find out if there’s really life right next door? What do we know about Venus and why has it been so hard to figure out so far? What else could possibly cause the presence of Phosphine and what would it mean, to space exploration and everything else, if this is really true?

GUEST: Neel Patel, space reporter, MIT Technology Review

Let’s block ads! (Why?)



Source link

Continue Reading

Science

COVID-19 Today: School, child care cases for Newmarket, York Region, and Ontario – NewmarketToday.ca

Published

on


Newmarket (reported Friday, Sept. 25, at 5 p.m.)

Schools

  • 0 school-related cases
  • 0 schools closed

Licensed child care facilities

  • 0 child care centre cases
  • 0 child care centres closed

York Region (reported Frisday, Sept. 25, at 5 p.m.)

Schools

  • 1 school outbreaks*
    • Blue Willow, Woodbridge (1 student, 1 staff)
  • 0 schools closed
  • 12 confirmed cases
  • 7 students
  • 5 staff/visitors
  • 8 (-2) schools under surveillance**:
    • Carrville Mills (1 staff), in Thornhill
    • Little Rouge (1 student), in Markham;
    • St. Michael the Archangel (1 staff); Tommy Douglas Secondary (1 student), Our Lady of Fatima (1 staff), in Woodbridge;
    • Maple High (1 student), Dr. Roberta Bondar (1 student) in Maple
    • Kleinburg P.S. (1 student) in Kleinburg
  • Surveillance closed for Sir Wilfrid Laurier (1 staff) and J. Addison (1 student), in Markham

*An outbreak is declared when 2 or more cases are confirmed within a 14-day period, with at least one case acquired in the school

**Schools with a laboratory-confirmed case that was not transmitted within the school 

Licensed child care facilities

  • 4 child care centre outbreaks*
  • 2 active outbreaks
    • Childventures Early Learning Academy, Aurora (1 staff)
    • Montessori School House, Maple (1 child, 1 staff)
  • 1 case child
  • 4 cases staff/visitors

*An outbreak is declared with one or more confirmed case in children or staff

Ontario (reported Thursday, Sept. 24 at 10:30 a.m.):

Cases in schools

  • 238 (+29) school-related cases
  • 110 (+10) students; 50 (+10) staff
  • 78 (+9) individuals not identified 
  • 198 (+20) of 4,828 schools with a case (4.10%)
  • 2 schools closed
    • Fellowes High School, Pembroke (1 student, 4 staff cases)
    • Monsignor Paul Baxter Catholic School, Ottawa (2 students, 2 staff)

Cases in child care centres and homes

  • 109 (+2) cases at child care centres and homes
  • 54 (+2) children
  • 55 staff
  • 36 (-1) of 5,111 child care centres with current cases (0.70%)
  • 10 (-1) child care centres currently closed (.20%)

York Region Public Health reminds parents and guardians to check your child daily for symptoms of COVID-19. For more information and resources, including how to protect yourself and others, visit york.ca/SafeAtSchool
 
You can download Canada’s COVID Alert in Apple and Google app stores or visit ontario.ca/covidalert

Let’s block ads! (Why?)



Source link

Continue Reading

Trending