[ExI] scieceblind

[Dylan Distasio]

I hope I'm not insulting by linking to an explanation, but I think it would
help if you think about water displacement and how a less dense object
floats in water.  It is the same exact principle when you have a less dense
object (the helium balloon) compared to the air:

http://science.howstuffworks.com/helium1.htm

On Fri, Oct 13, 2017 at 11:49 AM, William Flynn Wallace <foozler83 at gmail.com
> wrote:

>
>
> On Thu, Oct 12, 2017 at 8:56 PM, Mike Dougherty <msd001 at gmail.com> wrote:
>
>> On Oct 12, 2017 7:45 PM, "William Flynn Wallace" <foozler83 at gmail.com>
>> wrote:
>>
>>
>>
>> I also thought about something not in the book:  why does a helium
>> balloon rise?  Don't tell l me it's lighter.  My cat is lighter than I am
>> and he is not flying around.  The gas inside the balloon must be exerting
>> pressure in every direction, so the force cannot be from there.  Where is
>> the force here??
>>
>>
>> Do you not know this or are you cleverly feigning to test the list for
>> science blindness?
>>
> ​------------
> Ah, if only I were that clever.  Even if I were, I'd not pull that on
> y'all.  I just do not understand buoyancy.  Another example from the book
> has a table pushing upwards against a book lying on it.  Don't get that
> either.  Don't see where the force is coming from.
>
> Lighter things rise.  I get that.  I just don't see why.
>
> bill w​
>
>
>>
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