[KAIST 50주년 심포지엄] 대학은 변화 수용해야 사회 근간 역할 이어갈 것 donga.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from donga.com Daily Mail and Mail on Sunday newspapers.
I would like to comment on the Feb. 4 Mailbox posting, âGeographical America.â
First, though the Declaration of Independence and Constitution were remarkable documents, they were also flawed in some significant ways. In particular, the franchise was not specifically guaranteed for all Americans.
To wit, African American slaves were universally denied the right to vote. Freed slaves in only some non-slave states were able to vote. Women were nowhere considered voting citizens. Native peoples were seldom guaranteed voting rights. It took later constitutional amendments, a civil war, and decades of civil strife to rectify (in principle) these omissions from our founding documents.
Venus Was Once More Earth-Like, but Climate Change Made It Uninhabitable
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We can learn a lot about climate change from Venus, our sister planet. Venus currently has a surface temperature of 450℃ (the temperature of an oven’s self-cleaning cycle) and an atmosphere dominated by carbon dioxide (96 per cent) with a density 90 times that of Earth’s.
Aseguran que Venus era como la Tierra, pero algo lo cambió todo sanjuan8.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from sanjuan8.com Daily Mail and Mail on Sunday newspapers.
We can learn a lot about climate change from Venus, our sister planet. Venus currently has a surface temperature of 840 degrees F (450 degrees C) – the temperature of an oven’s self-cleaning cycle – and an atmosphere dominated by carbon dioxide (96%) with a density 90 times that of Earth’s.
Venus is a very strange place, totally uninhabitable, except perhaps in the clouds some 40 miles (60 km) up where the recent discovery of phosphine may suggest floating microbial life. But the surface is totally inhospitable.
However, Venus once likely had an Earth-like climate. According to recent climate modeling, for much of its history Venus had surface temperatures similar to present day Earth. It likely also had oceans, rain, perhaps snow, maybe continents and plate tectonics, and even more speculatively, perhaps even surface life.