How are living things created in laboratories?
There are a few ways living things can be created in laboratories. The easier way is to simply breed something. Scientists often use fruit flies for experiments, and since it’s tough to catch thousands of these things in the wild, they grow their own. Really they are just letting them breed in a controlled space, [...]
How Long Have Humans Been on the Earth?
The oldest human fossil found (named Lucy and found in Ethiopia) has been back dated to between 3 and 3.6 million years ago. Lucy was not a Homo Sapien, but we do know that she was a hominid, she walked upright. Chances are our species are direct desendants of Lucy’s species. If you want to [...]
Why Does an Eggshell Dissolve in Vinegar?
Vinegar will dissolve an eggshell, but leave the membrane intact, which means you can remove the eggshell but leave the egg intact, and yes I’m referring to a raw egg! The reason for this effect is due to the acetic acid in the vinegar. The egg shell is made up of calcium carbonate, the acetic [...]
