You are currently browsing the tag archive for the ‘bullet’ tag.

DSC01671

I have been trying to spruce up my online presence by building some new web pages (more about that soon) and by fixing the site I already have which everybody loves [crickets], um, which is to say Ferrebeekeeper!   Unfortunately trying new things doesn’t always work…so kindly forgive me if yesterday’s post looks a bit peculiar.  We will work with the web guru to get it all taken care of.  In the mean time, speaking of experimenting with new things, let’s check back in on JAXA spaceship Hayabusa2.

ASI-CIE JAPON-ESPACIO

Artist’s conception of Hayabusa2 touching down on Ryugu

When last we checked in with Hayabusa2, the Japanese spaceprobe had entered orbit around Asteroid Ryugu (a carbonaceous near-Earth asteroid, which is believed to be composed of pristine materials left over from the dawn of the solar system).  Hayabusa2 was deploying tiny 1.1 kilograms (2.4 pounds) hopping droids to jump around the ancient ball of rock and snow and learn whatever they could.  These robots would be followed by a larger robot probe, Mascot, which would study the asteroid in depth before Hayabusa2’s glorious showstopping signature move–a descent to the surface in order to fire a projectile into the asteroid (in order to collect an asteroid sample).  That’s right: while Americans have been utterly transfixed by the bloviations of our felonious leader, the Japanese have dispatched a spacefaring robot to drop hopping mechanized lice on a primeval space snowball and then to pop a cap in it!  Respect to the Land of the Rising Sun!

n-hayabusa-a-20190208.jpg

The probe arrived in perfect condition back in September of 2018, but the next phase of the mission got off to a rocky start…literally!  JAXA expected Ryugu to be covered with fine powder, but it was covered with jagged rocks.  The tiny hopping bots MINERVA-II1 A and B were really meant to test the conditions for MASCOT, a shoebox like robot-probe with real scientific instruments.  On a prior mission these hopping probes were too enthusiastic and, after a single touchdown, they hopped magnificently but suicidally into the infinite void (presumably yelling inaudible robot slogans of honor).  Although conditions on Ryugu were not as expected, the second generation Minervabots did a better job this time: they delivered the necessary telemetry, astrionics, and surface conditions to bring the mission to the next phase.  Mascot was duly dispatched back in October and it operated faultlessly for 17 hours before its battery ran out and the active phase of its mission ended. [As an aside, I am finding it challenging to describe all of the things happening on a planetoid inhabited entirely by various sorts of robots]

hayabusa2_mascot_animation

Animation of Mascot probe hopping around Ryugu…such balletic grace!

On February 22nd 2019, the Hayabusa2 spacecraft descended to the surface of the asteroid and physically collected a substantial sample of the regolith by shooting the asteroid with a small projectile.  You can watch the video of the brief encounter here.  There are a lot of pebbles and shards flying around, but apparently the craft was fine and is now back in orbit while the ground crew looks for a final site to sample in April.

ss-180930-misp-mn-19_208d91a29ed87e50b485f6dc57a646e4.fit-2000w

The Surface of Ryugu as imaged by a robot probe (JAXA)

This mission is super exciting, but the precious samples aren’t home yet.  We will keep you updated here on Ferrebeekeeper (and we will keep working on our own tech project of building a better site).

 

H4A1000A

Ferrebeekeeper, like its author is meant to be benevolent and philosophical.  Yet sometimes, despite our best intentions, we all must grapple with the unthinkable–this is why, today, we descend into a realm of unimaginable pain.  Allow me to present the dreadful bullet ant (Paraponera clavata) also known as the 24-hour ant–the hymenopteran that sits at the apex of the Schmidt Sting Pain Index.  The worker ants of this genus are 18–30 mm (0.7 to 1.2 inches) long; there are no soldiers or other castes (and the queen herself is not much larger than any of the workers).  They live in nests just underground and they hunt for small arthropods (and nectar) in the trees above.

Paraponera clavata worker, Misahuallí, Ecuador

Paraponera clavata worker, Misahuallí, Ecuador

The common name of the ant comes from the 24 hour agony caused by the creature’s excruciating sting.  Victims of the ant claim that being stung feels the same as being shot (and since the ant ranges from Nicaragua and eastern Honduras south to Paraguay, it seems likely that some of the people it has stung have sufficient personal experience to intelligently make the comparison).  The ant’s venom is poneratoxin–a short chain of amino acids held together by covalent bonds–which acts as a neurotoxin.  Poneratoxin affects voltage-dependent sodium ion channels which therefor disrupts synaptic transmission within the central nervous system.  That sounds clinical and antiseptic, but people stung by the ant describe hours upon hour of unrelenting abject agony (along with partial paralysis and general flailing in the afflicted part).

Paraponera clavata (the coin is for scale--they are not grubbing for money)

Paraponera clavata (the coin is for scale–they are not grubbing for money)

The ants have developed this potent sting as a means to deter animals which might unearth and disturb their underground nests (or otherwise harass them as they hunt and gather food).  Unfortunately, the ants never reckoned on the madness of humans.   The Satere-Mawe people of Brazil, an Amazonian tribe of hunter gatherers utilize the ants as part of their manhood initiation ritual.  Shamans lull a hive of ants into paralysis with smoke and then sew the living ants (stinger end out) into a sort of grass mitten.  Thirteen-year-old boys take turns putting on the mitten for five to ten minutes.  Then the initiates face 24 hours of partial paralysis as well as pain so intense that it causes hallucinations and madness (and some boys die from the ceremony).  In order to be respected as a stoic and fearless warrior a young Satere-Mawe man might undergo this ritual a score of times.

Prepare to reassess just how bad 8th grade actually was...

Prepare to reassess just how bad 8th grade actually was…

Ye Olde Ferrebeekeeper Archives

April 2019
M T W T F S S
« Mar    
1234567
891011121314
15161718192021
22232425262728
2930