“Laws are made to be broken ...” most people agree. But mostly they can not overcome the law of gravity, founded by Sir Isaac Newton (1643-1727). Upon seeing an apple falling from a tree, Newton realised that the same thing that caused the apple to fall, was what held the moon and the sun in the orbit: a new universal law was born. In 1687 the English physician published his famous Principia, which hypothesize the inverse-square law of gravity that forms the basis of modern engineering. It says that the gravitational attraction between two massive objects is inversly proportional to the square of their seperation distance. Unfortunately, upon this day Newton and other great scientist were not capable to explain the cause of this force. Joke
3 opmerkingen:
Hey Joke,
When I read your blog, I was pleased to see that you had chosen such an interesting and up-to-date topic.
Everyone knows who Newton was and what gravity is, but the theory behind this formula or how he got to it, is not known to many people. Your text explains the theory briefly, but very clearly and in a way that most people can understand.
The picture immediately shows the reader what the text is about.
I think the structure is very good because you used a very catching introductory sentence and it is written in a very fluent way, clearly distinguishing between beginning, middle and ending.
Even though it is an interesting text, I do have some remarks.
When talking about a law, it is better to put the formula next to the explanation, because it is a concise summary that makes the long explanation easier to interpret.
It might not be a bad idea to pay a bit more attention to your vocabulary and grammar. There are a number of mistakes that can easily be avoided if you reread your text properly. I am talking, for example, about spelling mistakes like "seperation" (separation) and "inversly" (inversely) and mistakes of conjugation like hypothesize(s), scientist(s)and can not (cannot).
Despite a few mistakes here and there, I thought your blog was very interesting and enjoyable to read.
Michel De Keersmaecker
Hi Joke,
What can I say, that hasn't been so eloquently said by Michel.
Concept and flow are fine, but mind the grammar/spelling errors.
Michel, best FB I've read so far!
olaf
Hi, me again.
Michel did forget to mention one thing :-)
Unfortunately, upon this day Newton and other great scientist were not capable to explain the cause of this force.
Apart from the subject/verb agreement (scientistS were...), you should opt for a different tense: because you mention 'upon this day', you need a tense that indicates that something started in the past and lasts up until the present. 'have not been able to explain' is what we need here.
olaf
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