Director / Editor: Victor Teboul, Ph.D.

Looking inside ourselves and out at the world
Independent and neutral with regard to all political and religious orientations, Tolerance.ca® aims to promote awareness of the major democratic principles on which tolerance is based.

Why does a rocket have to go 25,000 mph to escape Earth?

By Benjamin L. Emerson, Principal Research Engineer, School of Aerospace Engineering, Georgia Institute of Technology

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com.

Why does a rocket have to go 25,000 mph (about 40,000 kilometers per hour) to escape Earth? – Bo H., age 10, Durham, New Hampshire

There’s a reason why a rocket has to go so fast to escape Earth. It’s…

Read complete article

~	West Africa is the world’s new epicentre for terrorism – Nigeria is expanding its air force in response

~	Breast cancer-related fatigue: The benefits of adapted physical activity

~	Australia has a new autism strategy but questions remain for those who don’t get NDIS support

~	Fruit and veg, exercise, frequent bloodletting and more tips on staying healthy from medieval travellers

~	The world’s largest gathering: how India plans to keep 400 million pilgrims safe at the Maha Kumbh Mela festival

~	First Person: Syrian migrant shipwreck survivor vows to reconstruct shattered country

~	Cyberattack affecting school boards spotlights the need for better EdTech regulation in Ontario and beyond

~	LA fires: Why fast wildfires and those started by human activities are more destructive and harder to contain

~	Fertile land for growing vegetables is at risk — but a scientific discovery could turn the tide

~	Ecology of Fear: Mike Davis’ history of LA and natural disaster is re-read whenever fire rages in California