The day of recognizing for a bet on evidence for supersymmetry in particle physics theory - a nice way to patch the current model and felt by many to be the path forward because it is beautiful.
The quick summary is the Standard Model (called Core Theory by some .. that's a more powerful term) works very well and is elegant to the point of beauty, but it is incomplete. It predicts all particles should be massless. A mechanism - the Higgs Field - was added and explains mass in some of the mass. The problem is the particle associated with the Higgs Field is too light as interactions between it and the other particles should make it much heavier. Here's where Supersymmetry comes in. It adds a partner to each Standard Model particle. These interact with the forces in the model, but have different masses from their partners. They cancel out the contribution to the Higgs mass from the garden variety particles and all is well. It is a kludge, but turns out to be simple and very natural. So much so that many particle theorists bought in and have devoted their careers.
For a conjecture to be considered it much be expressed as a testable hypothesis. Many tests have been proposed - you should find evidence of the Supersymmetric partners at some energy - probably within the range of the LHC that found the Higgs Boson. But so far crickets. They might be at higher energies, but it is possible and even likely that they don't exist - this may be Nature telling us we're not smart enough .. that happens all the time.
In beginning physics when you first learn about Special Relativity the leap you need to make is time and space are not isolated, but are rather parts of something called space-time. In our everyday world we can isolate them to high precision, but that breaks down when objects are moving swiftly with respect to each other. The twins paradoz is often the exercise that drives this home. Here's the set-up from Minute Physics.
a tip of the hat to Greg who sums it up with 'god, I love evolution'
Can the elongated hindwing tails of fluttering moths serve as false sonar targets to divert bat attacks?
Wu-Jung Lee and Cynthia F. Moss
It has long been postulated that the elongated hindwing tails of many saturniid moths have evolved to create false sonar targets to divert the attack of echolocation-guided bat predators. However, rigorous echo-acoustic evidence to support this hypothesis has been lacking. In this study, fluttering luna moths (Actias luna), a species with elongated hindwing tails, were ensonified with frequency modulated chirp signals from all angles of orientation and across the wingbeat cycle. High-speed stereo videography was combined with pulse compression sonar processing to characterize the echo information available to foraging bats. Contrary to previous suggestions, the results show that the tail echoes are weak and do not dominate the sonar returns, compared to the large, planar wings and the moth body. However, the distinctive twisted morphology of the tails create persistent echoes across all angles of orientation, which may induce erroneous sonar target localization and disrupt accurate tracking by echolocating bats. These findings thus suggest a refinement of the false target hypothesis to emphasize sonar localization errors induced by the twisted tails, and highlight the importance of physics-based approaches to study the sensory information involved in the evolutionary arms race between moths and their bat predators.