Retired USAF #intel, amateur radio satellite enthusiast & cat whisperer, Formerly WA3DJI, WA3WEN, DA1MG and DA1CM. #amsat #hamradio

San Angelo, Texas - DM91sk
Joined June 2009
 Time for the annual fancy grids update. #amsat
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Glenn Miller 🛰 retweeted
U-2S Dragon Lady returning to Beale AFB after a flyover at the SF 49er's football game tonight! 🏈🐲 #AE096B/80-1099/PINON52 H/T @MRAIDANya @Borrowed7Time @SFJET147 @Saint1Mil @Andyyyyrrrr
USAF U-2 as PINON52 this evening Go @49ers !
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Giorgia Meloni has deployed the Italian Army in Milan against the barbaric foreign horde. FIGHT. FIGHT. FIGHT. 🇮🇹
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Glenn Miller 🛰 retweeted
“You’re going to be caught with more than your pants down,” warns Dem power broker Susan Rice about what happens to Trump supporters when Dems take over: “Whether you’re a law firm, a university, a media entity, big corporation, big tech…there will be an accountability agenda…companies better preserve their documents, they better be ready for subpoenas.” That ought to boost the economy, eh?
Susan Rice offers a taste of what’s coming should the left retake power — promises Democrats will punish corporations and other institutions who have “taken a knee to Trump.” “It’s not going to end well for them." “If these corporations think that the Democrats, when they come back in power, are going to play by the old rules…they’ve got another thing coming." “There will be an accountability agenda." “This is not going to be an instance of forgive and forget."
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Glenn Miller 🛰 retweeted
No one be sucking it out.....
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True 💯💯💯 😂😂😂
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“Sorry folks the Louvre is closed. Terrorist out front shoulda told you.”
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🚨BREAKING: Lisa Domski had spent nearly 38 years at Blue Cross Blue Shield of Michigan when the company introduced its COVID-19 vaccine mandate. Domski, a devout Catholic, asked for a religious exemption. She wrote that the vaccines available at the time had been developed or tested using fetal cell lines from abortions, and that taking one would violate her faith. Her job was 100% remote. She had no in-person contact with coworkers. The company denied her exemption anyway and fired her. She won a $12.7 MILLION lawsuit for being wrongfully fired! Justice is served.
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Glenn Miller 🛰 retweeted
BREAKING: Debris believed to be from a Chinese rocket has been discovered in a farmer’s cornfield in Minnesota, after the spacecraft’s upper stage reentered Earth’s atmosphere over the United States. The massive metallic object, approximately 11 feet (3.4 meters) wide, was discovered October 14, prompting an investigation by state and federal authorities. According to Ars Technica, the evidence points to a Zhuque-2E rocket launched by Chinese company LandSpace on September 15, carrying 10 satellites for China’s Qianfan broadband constellation, a planned rival to SpaceX’s Starlink. After deploying its satellites, the rocket’s upper stage performed a deorbit maneuver, with its trajectory and diameter closely matching the debris found in Minnesota. Rocket stages are typically directed toward unpopulated ocean areas during controlled disposal, raising questions about whether this reentry went as planned. No injuries were reported, and the object’s origin has not yet been officially confirmed.
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Saints and Steelers unveil new riot-gear style uniforms ahead of their game in Paris, France 😭
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Glenn Miller 🛰 retweeted
This is pretty funny. 😂😂😂😂
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The U.S. should be helping. We need to send Randi Weingarten to Europe to get their schools straightened out.
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NYC bagel shop forced to remove cartoon mascot after influencer calls it 'blackface' trib.al/beZO71F
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Voici François-Louis Artois d’Hauteville, 15 ans, un jeune Français issu d’une ancienne lignée normande. Il manifeste contre le manque de professeurs de philosophie dans son établissement — sa matière de prédilection. L’an dernier, un remplaçant a dû condenser en un seul semestre, à marche forcée, l’ensemble du programme consacré à Hegel et à Kant. François a été le seul de sa classe à tenir le rythme : il avait déjà lu La Phénoménologie de l’esprit. Ses camarades, eux, peinaient à suivre, découvrant à peine cette œuvre en parallèle de la Critique de la raison pure. Il a bien tenté de les aider après les cours, mais ces séances empiétaient sur ses engagements bénévoles dans une maison de retraite et sur ses leçons de violoncelle. Voilà pourquoi, sur cette photo, il consulte sur son téléphone un cours consacré à la lecture des partitions et aux fondements de la musique classique.😇🇫🇷
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Glenn Miller 🛰 retweeted
In November 2000, Lisa Reid, a woman who had been blind for more than 10 years, bent down to kiss her guide dog goodnight and hit her head on a coffee table. The next morning, she opened her eyes and realized she could see again. Lisa lost her sight as a child. When she was 11, she developed a brain tumor. Surgery saved her life, but the tumor had already damaged her optic nerves. Doctors told her she would never see again. But somehow, one bump on the head had brought it back overnight. No one could explain how. Seeing the world again was a huge shock, especially when she looked at her little brother for the first time in years and realized he had grown into a man.
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Glenn Miller 🛰 retweeted
Small, inconvenient fact:
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月球上的灰尘,只要沾上宇航服或者仪器,就死活擦不掉了。 你拿刷子去擦,它像金刚砂一样当场把镜头刮花;你拿气枪去吹,月球上连空气都没有,带压缩气体上去成本贵得吓人。 1972 年阿波罗 17 号任务结束,指令长尤金·塞尔南(Gene Cernan)脱下头盔,给美国宇航局留下一句极重的警告: 月球上所有机械、生理和物理问题人类都能克服,除了一样东西。 月尘。 为什么地球上的灰尘拍拍就掉,月球上的灰尘却像强力胶一样缠着人不放? 答案全在它的身世里。 地球上的泥土和沙子,被几十亿年的风吹雨打、河流冲刷,棱角早就被磨圆了,摸起来是滑的。 月球上可没有大气层,也没有一滴流动的水。 几十亿年里,成千上万颗陨石和微陨石,以每秒几十公里的速度疯狂轰击月面。 每一次剧烈的撞击,不仅把岩石砸碎,撞击瞬间产生的高温还会把岩石直接融化。 融化的岩浆在冰冷的真空里几乎瞬间冷却,凝固成无数极度锋利、边缘像碎玻璃一样的锯齿状碎屑。 随后,下一批微陨石呼啸而来,又把这些玻璃碎屑砸得更细、更多。 整座月球表面,覆盖的全是微米级、带着锋利刀刃的矿物微粒。 它们从来没有经历过一秒钟的风蚀或水蚀,每一颗微粒都长着倒钩般的毛刺。 长得凶狠只是它的一半问题。 这把灰尘还拥有两道让人头疼的吸附力。 第一道是纯粹的微观接触力。 这些微粒实在太细了,很多颗粒的直径只有几微米甚至几百纳米。 颗粒越小,表面积相对于质量的比例就大得惊人。 它一旦落在宇航服的纤维缝隙、机械关节或者镜头表面,无数锋利的微观刀刃就会直接卡进材料表面的凹凸纹理里,死死咬合住。 在微米尺度下,平时微弱的范德华力也开始起作用,像强力胶水一样把尘埃和接触面拉在一起。 这还不够,最诡异的第二道吸附力来自阳光和宇宙射线。 月球直接暴露在强烈的阳光和太阳风之下。 阳光里的紫外线照在月球朝阳面上,通过光电效应把尘埃表面的电子打飞,让整片月尘带上强烈的正电荷; 背阴面的等离子体,又会给尘埃注入负电荷。 整座月球表面的微尘,全被静电充得满满当当。 甚至不需要谁去碰它,光是昼夜交替带来的电场变化,就能让这些带电微尘在月面上腾空跳跃、四处飘散,像有了生命一样往所有带电或者中性的设备表面上扑过去。 当年阿波罗时期的宇航员被这把灰坑得苦不堪言。 宇航服的多层密封胶圈被月尘磨得漏气,金属拉链被彻底卡死,隔热板被糊上一层厚灰导致设备疯狂过热。 宇航员哈里森·施密特(Harrison Schmitt)在登月舱脱下头盔,悬浮在失重空气里的细小月尘钻进呼吸道,闻起来像烧焦的火药味,呛得他连续打了好几天喷嚏,眼睛充血流泪,这就是著名的月球花粉症。 更要命的是,如果你想用布擦掉镜头或者宇航服面罩上的灰,细碎的尖锐玻璃渣会直接在昂贵的光学涂层上划出一道道白痕,越擦磨损越厉害。 怎么破这个死局? 月球上没有水给你冲洗,运水上天的发射成本没人吃得消; 月球也没有空气给你吹,带高压气罐上去不仅占死宝贵的载荷,高压气流卷起锋利的微尘到处乱溅,还会变成微观子弹把旁边的太阳能电池板打得千疮百孔。 常规的机械清洗手段,在月球上全部宣告失效。 美国宇航局肯尼迪航天中心的科学家卡洛斯·卡莱(Carlos Calle)和他的团队,反过来盯上了这把灰尘的弱点: 既然月尘死死粘住表面,靠的是它身上的静电荷。 那为什么不用电场,把这把带电的灰尘直接扔出去? 这就是电动力学防尘罩(EDS)的由头。 整套设计非常精巧,上面没有一个活动的机械零件。 工程师在玻璃镜头、太阳能电池板或者散热器表面,嵌入一层肉眼几乎看不见的透明微型电极网,比如氧化铟锡(ITO)超细电极线。 这些电极彼此平行排列,宽度和间距只有几十微米。 当月尘落满表面的时候,只要给电极通上一组多相交流电,比如三相或四相交变电压。 相邻电极之间的电位差迅速交替变换,在表面激发出一种不断向前奔跑的非均匀电场,也就是行波电场。 神奇的物理过程出现了。 对于本身就带着静电荷的月尘微粒,变化的电场直接产生库仑力,把微粒向上猛推一下; 哪怕有些微尘本身不带净电荷,在极度不均匀的交变电场中,微粒内部的正负电荷也会被迅速极化,产生行波介电电泳力。 原本死死贴在玻璃上的微小玻璃碎屑,在电波的推动下,居然原地悬浮起来,顺着电场波浪一路跳跃、滑行,直接被甩出了表面边缘! 没有高压气枪,没有抹布,没有机械雨刷。 通电几秒钟,整块落满月尘的镜头就像抖包袱一样,自己恢复透亮。 这套技术在实验室里测试了多年,但地面上的模拟月尘和真空罐,跟真正的月球环境终究隔着一层纸。 它到底能不能在真正的月球上活下来? 答案在 2025 年彻底见分晓。 2025 年 1 月,萤火虫航天公司(Firefly Aerospace)的蓝幽灵一号(Blue Ghost Mission 1)着陆器搭乘猎鹰 9 号火箭升空,并在 3 月成功软着陆在月球危海盆地。 着陆器上搭载的一套关键有效载荷,就是美国宇航局的电动力学防尘罩。 在真实月球极端温差、太阳辐射和月尘扑面的严酷环境里,防尘罩顺利启动。 通电之后,它在没有消耗一滴水、没有喷出一口气的状态下,干净利落地清除了航天器玻璃表面和散热面板上的月壤碎屑。 困扰了人类半个多世纪的登月头号障碍,第一次找到了在物理上不伤设备、不占重量的优雅解法。 半个世纪前,阿波罗宇航员看着满身擦不掉的灰渣,无可奈何; 半个世纪后,工程师利用那把让灰尘附着的电荷本身,把棘手的吸附力变成了它自己跳下飞船的弹簧。 把让人头疼的特性反过来变成解法,工程上最漂亮的突破,往往就藏在这种物理反差里。
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Holy fuck. Okay gotta laugh at this, I’m sorry, finally a bit of Karma 😅 This braindead Islamist rioter tried to break into and loot a shop in France…. Instantly gets flattened by a huge pane of glass.
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Retard set himself on fire. Love to see it
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Demonstrators dancing at a “No Kings” protest today in Chicago
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