Recent content by frish

[QUOTE="Orodruin, post: 5129121 inertia is not a force, Type into Google 'force of inertia' and you get About 21,800,000 results (0.36 seconds) what then are they talking about? Whe Earth attracts Moon, there is a force 1) of Earth to Moon and 2)Moon attracts Earth. Those are two forces...

You would have to read the whole essay to understand the third law. The 'two different bodies' is a popular misconception, found even in some textbooks. Consider Moon. One force is gravity, other is inertia. Both act on the Moon. Put their sum to zero and you get the equation of motion...

Explained in more details and history here: http://www.iei.info/knol/pf/3trm10yysobsi-2-Newton-s-laws-the-concepts.php

Amazing hoe a simple question can produce such a wealth of answers. The number of steps remain the same. The distance to walk and size of the step do change same way when observed in different frames. Obviously. Also, imagine a distant , moving, observer viewing the walk. Distances would be...

Hello DHFPeople read about Relativity in the newspapers, memorize the 'mc square', hear strange tales about objects getting heavier when they move at close to the speed of light, then bring themselves to ask on Internet forums: "What does it look like when one is moving with a speed close to...

Jim Kata: You say Do we actually have free markets? If you believe in free markets fine. What are some suggestions to changing the incentives of the current economic system which promotes profits at the expense of all else? And by that you are leading us into same semantic trap...

Well - You say: a process can continue by solely utilizing energy derived from Earth's daily solar input combined with geothermal emissions. We can call this the daily energy budget for Earth. That seems to be to strict limit on 'sustainable' . If mankind can live from an energy source for...

Hey Bro You definition is too narrow. What about? sustainable era of cheap clean energy form gen IV reactors"= era of CCE Alos, can we put sime time range on. Like till 2100. Otherwise we need to consider exticyion of Sun and 'ultimate fate of universe'

Jim Kata Putting that ill-defined word 'capitalism' (mis)lead people to discuss alternatives. Perhaps formulating the question thus: Is decision A or decision B more likely to lead to a catastrophe of the type described in Revenge of the Gaia in next N years (in 2100)...

H2Bro says: Socialism is by far the least likely to preserve egalitarian society in a situation of declining resources But this is not supported be empirical data: That is not at all clear and not supported by data. After Russia adopted capitalistic model, number of magnates emerged -...

Not only 'capitalism and socialism' are poorly defined (which country [except N. Korea] is socialistic these days? )-- but even notion of growth is ill defined. If population grows, then there is a need for more goods. Economist mean by growth 'larger GPD' (in PPP dollars) but I suspect...

We can interpret inertia to say that an object will not accelerate unless acted upon by some force. In other words inertia preserves scalar and angular momentum, thus the "force" of inertia is equal to zero. 1) Force of inertia is not zero, as explained e.g. here...