Mastodawn

If it works as designed, it could reopen the skies to supersonic passenger travel over land. One of the main reasons previous supersonic aircraft such as the Concorde were retired was due to their extremely loud sonic booms.

On April 3, 2026 the X-59 completed its first wheels up flight, reaching 20,000 feet and approximately 460 mph.

https://www.lockheedmartin.com/en-us/products/x-59-quiet-supersonic.html

https://en.wikipedia.org/wiki/Lockheed_Martin_X-59_Quesst

#flight #plane #aircraft #SST #transportation

X-59

Unlock the future of supersonic travel with the X-59, a revolutionary plane designed to help NASA reduce sonic booms. Learn more from Lockheed Martin.

Lockheed Martin

Rick Thoman May 30

Sea surface temperatures around Alaska for the week ending May 29 were generally near to below normal. Small exceptions in Norton Sound where sunshine warming open water areas. Southeast Bering especially due chilly, reflecting the above normal sea ice last month and unusually cloudy weather in May. @Climatologist49

@kc @meerschweinchen83

#dringend #wichtig: Auf #GrapheneOS führt das installieren des grapheneSTT und das anschließende Aktivieren von #talkback zum Absturz von #SST und dem sofortigen erneuten Aufruf von talkback. Nichts geht mehr. Auch nicht nach Neustart. Ich habe über ADB shell pm com.Android.talkback deaktiviert. Die alternative wäre wohl nur ein factory reset gewesen. Also vor Experimenten developers Optionen aktivieren, debuging per USB aktivieren, Zertifikat löschen und neu setzen, per ADB ausprobieren, ob pm gestartet werden kann. Dann mit STT und talkback experimentieren

Fabrizio Musacchio May 20

🧠 New paper by Chiu et al: #SST #interneurons do not only suppress #dendritic signaling. Via tonic activation of α5 #GABA receptors they can paradoxically enhance AP-evoked dendritic #CalciumSignaling in #cortical #pyramidal #neurons. 🌍 https://doi.org/10.1016/j.neuron.2026.04.017 #Neuroscience

Fabrizio Musacchio May 20

🧠 New paper by Chiu et al: #SST #interneurons do not only suppress #dendritic signaling. Via tonic activation of α5 #GABA receptors, they can paradoxically enhance AP-evoked dendritic #CalciumSignaling in #cortical #pyramidal #neurons.

Mechanistically, tonic #GABA hyperpolarizes #dendrites & deinactivates low-threshold voltage-gated #calcium channels, increasing calcium influx and facilitating calcium-dependent inhibitory #SynapticPlasticity.

🌍 https://doi.org/10.1016/j.neuron.2026.04.017

#Neuroscience #CompNeuro

Rick Thoman May 16

Sea surface temperatures remain cooler than normal in the eastern and northern Bering Sea and parts of the Gulf of Alaska. Very cool #SST in the southeast Bering the result of late sea ice. Eastern Gulf of Alaska and western Bering Sea warmer than normal. Data courtesy NOAA/PSL/ESRL. #akwx #Arctic

Rick Thoman May 16

Sea surface temperatures remain cooler than normal in the eastern and northern Bering Sea and parts of the Gulf of Alaska. The very cool water in the southeast Bering Sea is the result of late season sea ice. Eastern Gulf of Alaska and western Bering Sea remains warmer than normal. Data courtesy NOAA/PSL/ESRL. @Climatologist49

#akwx #Arctic #SST

Rick Thoman May 9

Sea surface temperatures difference from the 1991-2020 baseline around Alaska for the week ending May 8. Eastern Bering Sea still cooler than normal but above normal in the west. Recent storminess cooled SSTs relative to normal in the Gulf of Alaska. Data courtesy NOAA/PSL/ESRL. #akwx #Arctic #SST

Rick Thoman May 9

Sea surface temperatures difference from the 1991-2020 baseline around Alaska for the week ending May 8. Eastern Bering Sea remains cooler than normal and recent storminess has cooled SSTs relative to normal in the central Gulf of Alaska. Western Bering and Eastern Gulf of Alaska remain warmer than normal. Data courtesy NOAA/PSL/ESRL. @Climatologist49

#akwx #Arctic #SST

Faculté Sciences de Monastir May 6

FSM - Hackathon Smart & Sustainable Textile

https://fsm.rnu.tn/fra/articles/5428/hackathon-smart--sustainable-textile

#Hackathon #SST