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Covering a flat surface with some pattern of geometric shapes with no overlaps or gaps is called tiling. Tiling shows up in many places, from the tiles on our kitchen floors to bees’ honeycombs. They generally have a pleasing, even fascinating, quality, and their regularity often expresses some natural harmony.
The most familiar kinds of tiling, such as covering a floor with squares that meet edge-to-edge, are examples of p... More...
Much has been written regarding the critical importance of photosynthesis and how utterly complex this near-universal biochemical process is.1,2 Photosynthesis is the production of life energy from light energy and is still not completely understood: “It’s perhaps the most important biochemical process on Earth and scientists don’t yet fully understand how it works.”3
The amazing proc... More...
The analysis of data from the MESSENGER spacecraft has revealed evidence of recent tectonic activity on Mercury—activity caused by the ongoing cooling of the planet’s interior.1,2 This evidence is in the form of small fractures (or grabens) incised into long embankments, called lo... More...
In the late 1960s, a scientist named Ronald Lockley wrote, “How do animals find their way over apparently trackless country, through pathless forests, across empty deserts, over and under featureless seas?...They do so, of course, without any visible compass, sextant, chronometer, or chart...”1
Indeed, it has long been known that nearly all types of creatures, from bacteria2 to foxes,3... More...
A new technical report focusing on antibodies from Medieval human teeth also reported the discovery of antibodies from inside a wooly mammoth bone.1 Radiocarbon dating methods pinned tens of thousands of years to the mammoth fossil. Antibodies are relatively small proteins found in all kinds of body tissues. They contain a particular bond that should not last for eons. It seems that we lack some understanding either of antibody d... More...
Like all animals, “simple” invertebrates such as the jellyfish continue to amaze zoologists.1,2
Recently, scientists have trained a tiny species of box jellyfish (Tripedalia cystophora) to see and avoid obstacles.
No bigger than a fingernail, these seemingly simple jellies have a complex visual system with 24 eyes embedded in their bell-like body. Living in man... More...