Practical Science
Please review each article prior to use: grade-level applicability and curricular alignment might not be obvious from the headline alone.
A soothing cup of herbal tea can begin in your garden
5 minute read Preview Wednesday, Jun. 24, 2026If life hands you a data centre, grow tomatoes
4 minute read Tuesday, Jun. 23, 2026People everywhere are protesting AI data centres, with good reason. They use a lot of water and energy, and they create a lot of noise. They create relatively few ongoing jobs after construction is complete.
Electricity used to power servers at AI centres creates heat. To keep running they must be cooled. More electricity is used to power chillers to cool the computers. In summer, chillers evaporate water and dissipate heat to the atmosphere. Lots of it. A few Olympic-size swimming pools worth, even in our cold climate.
A 100 MW (100,000 kW) data centre uses enough power to heat about 10,000 homes with electric baseboard heat or an electric furnace. Or about enough to heat 80 acres of greenhouse on the coldest days of January. To put that in perspective, the recently completed Keeyask dam produces about 695 MW of power. A 100 MW data centre uses about 14 per cent of the power produced by the Keeyask dam.
In Finland, a data centre was built under downtown Helsinki. Waste heat from the data centre is recycled to heat the buildings above it.
Confronting the scourge of polio
8 minute read Preview Saturday, Jun. 20, 2026Significance of soil, water management
4 minute read Preview Saturday, Jun. 20, 2026Opposition forms to First Nation’s bid for wind farm
3 minute read Preview Thursday, Jun. 18, 2026National Science Foundation reverses decision to dismantle oceans-monitoring network after outcry
3 minute read Preview Tuesday, Jun. 23, 2026FDA panel backs first-of-its-kind flu vaccine using mRNA technology
5 minute read Preview Thursday, Jun. 18, 2026Can we become Canada’s new capital of fresh water?
4 minute read Thursday, Jun. 18, 2026Just last month, over 800 limnologists, or freshwater scientists, from North America and East Africa descended upon the RBC Convention Centre for a meeting of the greatest minds on the Great Lakes.
An ancient oak tree said to have sheltered legendary Robin Hood has died
3 minute read Preview Thursday, Jun. 18, 2026Archaeology team unearths ‘prototype’ of world-famous Stonehenge monument just a few miles away
3 minute read Preview Thursday, Jun. 18, 2026‘Electrical non-compliances’ found at B.C. waterpark where kids were burned
3 minute read Preview Friday, Jun. 19, 2026Manitoba’s role in a distant Ebola outbreak
5 minute read Preview Monday, Jun. 15, 2026Weighing profits against transforming ‘beautiful country’ of wind-turbine proposal south of Brandon
5 minute read Preview Saturday, Jun. 13, 2026Storm insurance claims could set Manitoba record
6 minute read Preview Friday, Jun. 12, 2026CancerCare MDs, staff call attention to specialist’s resignation, warn of dire consequences
5 minute read Preview Friday, Jun. 12, 2026Two tornadoes confirmed in Manitoba during Tuesday’s storm
2 minute read Preview Thursday, Jun. 11, 2026Rabies vaccination program for skunks, raccoons in effort to stop spread to Montreal
4 minute read Preview Wednesday, Jul. 1, 2026Online therapy developed in Montreal helps seniors sleep better, study finds
4 minute read Preview Tuesday, Jun. 30, 2026A flesh-eating cattle parasite spreads beyond Texas as new screwworm cases are found
5 minute read Preview Tuesday, Jun. 9, 2026Fifty years ago this June, Manitoba Hydro destroyed one of the province’s finest lakes, its fourth-largest, when it began operating a newly constructed control structure at Missi Falls, the outlet where Southern Indian Lake flows into the lower Churchill River.
This raised the water level of the lake, creating a reservoir and diverting the flow southward via the Rat and Burntwood River systems to increase power output at its hydroelectric generating stations along the Nelson River.
More than 3,500 km of shorelines on the lake alone were permanently inundated, and along with its adjacent waterways, an area of 840 square kilometres was flooded. The entire Indigenous community of South Indian Lake had to be moved to higher ground to avoid the flooding, and the island community of Nelson House was irreparably harmed.
The Churchill River diversion project had a disastrous effect on the natural environment and the Indigenous people whose subsistence and way of life depended on the lake.