Many of my questions come from mine kids. As we were cleaning up leaves, we thrust all the pipeline from one tree right into a corner. My daughter asked me to calculation the variety of leaves in the pile (yes, she is walking to be a great blogger one day). Room there a million leaves in <…>

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Many the my concerns come from mine kids. As we to be cleaning up leaves, we pushed all the pipeline from one tree into a corner. Mine daughter request me to estimate the variety of leaves in the pile (yes, she is going to be a great blogger one day). Space there a million leaves in the pile? My turn off the wall surface guess was: no, not a million. However, ns really don't recognize if ns am entirely off or not.

You are watching: How many leaves are on a tree

To get a better estimate (at least far better than a wild guess), i took a small sample that leaves.


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With this sample, I have the right to count the number of leaves. Ns can likewise estimate the volume that this small pile to get the sheet volume density (leaves per cubic meter). So, how many leaves? It could not look favor it, however this is 50 leaves. How large is this pile? let me estimate that this pile of pipeline is a ball (spherical leaf pile) through a radius the 7 cm. The volume the this pile would then be:


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This provides a leaf-density the (not to be puzzled with mass thickness even though i will use the very same symbol):


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I can already see that there space not one million leaves in the pile. At that density, ns would need on the stimulate of 50 cubic meters of leaves. Yes, this is still an estimate - there are many things that might be off, favor the leaf density itself. However, it most likely won't be off by the much. Ok, allow me finish the estimate and then we have the right to talk about limitations.

How huge is the pile? You deserve to see in the image at the top, the shape and size of the pile of leaves. For an approximation, I will certainly say that this heap is in the form of a quarter of a cone. The radius of the heap is around 2 meters through a elevation of roughly 1 meter. The volume the a cone is:

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Just to be clear, the h is the elevation of the cone. Using my values, one fourth of this cone volume would be 1.05 m3. Remember, this is just an estimate. Yet there are limits to this estimate. Sure, the volume isn't EXCACTLY 1.05 cubic meters. However, i don't check out the volume of pipeline being much less than 0.5 or an ext than 3 cubic meters.

Now because that the variety of leaves. permit me begin off through my an initial guesses because that the leaf-density and also the volume that the pile. With the leaf-density formula, i have:

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Not a million leaves, just 30 thousands leaves. Ok, probably I made a negative assumption around the leaf density. Probably the leaves at the bottom the the pile room super smashed into an nearly black hole-like density. Would certainly it do you happier if I offered a density 3 times has actually high together my estimate? This would provide a number of leaves at just over 100 thousand. Over there is no means there could be a million pipeline in that pile.

But how numerous leaves walk the tree have? just by looking at the kind of leaf, the looks prefer almost all of the leaves came from this tree.

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Perhaps simply 5% the the leaves are still top top the tree. Some can have fallen off and blown come a place such the they didn't end up in the pile and also some can have been built up by an 8 year old who wanted to use leaves for an art project. Overall, I would say the there could be from probably 30 come 50 thousand pipeline on the were initially on the tree.