it is called "spongy bone"
spongy bone
Only if you use a porous paint.
Imbibition
epiphyses
Spongy BoneA spongy bone is so spongy because, the spongy bone has many open spaces and contains bone marrow. But, spongy bone is know to be lightweight and very strong.It also contains trabeculae which allow for the "gaps" in the bone and allow it "give." It is also the only place where red marrow is found in adults.
osteoporosisosteoporosis
Yes, but it is lightweight (porous) for flight
Everyone's favorite--pumice.
There are two types porous and non porous. You can also seel porous concrete to make it non porous.
There are two types porous and non porous. You can also seel porous concrete to make it non porous.
There are two types porous and non porous. You can also seel porous concrete to make it non porous.
Igneous rocks range from the highly porous pumice to the nearly non-porous granite. In some explosive eruptions of felsic magma, as is the case with pumice, the frothy mixture of rock and gas cools so rapidly that open vesicles are preserved, making it very lightweight and porous. With granite, the intrusive igneous rock has had a long time to cool underground, and with its interlocking crystalline structure, it has an extremely low porosity.