Global Warming

bsu · 发表于 2005-9-20 06:13

People in the world are being threatened by the fast coming global warming. one of the phenomena which causes by global warming is the icebergs in Antarctica are melting at a much faster pace. some scientists say if the ice melts,the sea level goes up which will cover our lands. while some other scientists say,some part of the ice is under water,so when the ice become water which will then compensate the volume that the ice under water,so the sea level is not going to go up.

can anybody here use maths and physics to work this problem out? will the sea level go up or stay unchanged?

bsu · 发表于 2005-9-20 06:39

People in the world are being threatened by the fast coming global warming. one of the phenomena which causes by global warming is the icebergs in antarctica are melting at a much faster pace. some scientists say if the ice melts,the sea level goes up which will cover our lands. while, some other scientists say,some part of the ice is under water,so when the ice become water which will then compensate the volume that the ice under water,so the sea level is not going to go up.

can anybody here use maths and physics to work this problem out? will the sea level go up or stay unchanged?

bsu · 发表于 2005-9-20 06:50

please challenge this problem.

bsu · 发表于 2005-9-20 08:41

come on.

milkie · 发表于 2005-9-20 10:48

南极冰山下面是陆地啊，大哥，这也晕？

bsu · 发表于 2005-9-20 13:15

no,it's ice!

tdy · 发表于 2005-9-20 18:51

easy to model，only need knowledge from middle school.

tdy · 发表于 2005-9-20 18:53

but need some experimental data.

bsu · 发表于 2005-9-21 03:14

this is a simple maths question.

mlulu · 发表于 2005-9-21 13:52

should be rise,

the left part of iceberg , which was above the water , would drop into the sea,

am i right ?

bsu · 发表于 2005-9-22 06:28

yes,you are right.

very clever!

but can you use maths to prove it?

mlulu · 发表于 2005-9-22 11:30

what s that mean ?

bsu · 发表于 2005-9-23 06:11

you use maths to work it out.

bsu · 发表于 2005-9-23 06:27

tdy,can you work out whether the water level is going to rise or decrease or stay the same if i drop a huge stone into a small lake from my boat?