Mark B. retweetledi
Mark B.
4.9K posts

Mark B. retweetledi

Japan's built had a impossible problem... until a tiny bird solved it.
Japan’s famous bullet train once had a huge problem. Every time it exited a tunnel, it created a loud sonic boom that disturbed people living nearby. Engineers struggled for years to fix it. Then one engineer who loved bird-watching noticed something incredible.
The kingfisher bird dives from air into water at high speed without making a splash. So engineers redesigned the nose of the Shinkansen train to look like the bird’s beak.
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Mark B. retweetledi
Mark B. retweetledi
Mark B. retweetledi
Mark B. retweetledi
Mark B. retweetledi

Important Shortcuts Keys For Computer, then Add yours in the comments
CTRL+A. . . . . . . . . . . . . . . . . Select All CTRL+C. . . . . . . . . . . . . . . . . Copy
CTRL+X. . . . . . . . . . . . . . . . . Cut
CTRL+V. . . . . . . . . . . . . . . . . Paste
CTRL+Z. . . . . . . . . . . . . . . . . Undo
CTRL+B. . . . . . . . . . . . . . . . . Bold
CTRL+U. . . . . . . …. . . . . . . . Underline
CTRL+I . . . . . . . . . . . . . . . . . Italic
F1 . . . . . . . . . . . . . . . . . . . . . . Help
F2 . . . . . . . . . . . . . . . . . . . . . Rename selected object
F3 . . . . . . . . . . . . . . . . . . . . . Find all files
F4 . . . . . . . . . . . . . . . . . . . . . Opens file list drop-down in dialogs
F5 . . . . . . . . . . . . . . . . . . . . . Refresh current window
F6 . . . . . . . . . . . . . . . . . . . . . Shifts focus in Windows Explorer
F10 . . . . . . . . . . . . . . . . . . . . Activates menu bar options
ALT+TAB . . . . . . . . . . . . . . . . Cycles between open applications
ALT+F4 . . . . . . . . . . . . . . . . . Quit program, close current window
ALT+F6 . . . . . . . . . . . . . . . . . Switch between current program windows
ALT+ENTER. . . . . . . . . . . . . . Opens properties dialog
ALT+SPACE . . . . . . . . . . . . . . System menu for current window
ALT+¢ . . . . . . . . . . . . . . . . . . opens drop-down lists in dialog boxes
BACKSPACE . . . . . . . . . . . . . Switch to parent folder
CTRL+ESC . . . . . . . . . . . . . . Opens Start menu
CTRL+ALT+DEL . . . . . . . . . . Opens task manager, reboots the computer
CTRL+TAB . . . . . . . . . . . . . . Move through property tabs
CTRL+SHIFT+DRAG . . . . . . . Create shortcut (also right-click, drag)
CTRL+DRAG . . . . . . . . . . . . . Copy File
ESC . . . . . . . . . . . . . . . . . . . Cancel last function
SHIFT . . . . . . . . . . . . . . . . . . Press/hold SHIFT, insert CD-ROM to bypass auto-play
SHIFT+DRAG . . . . . . . . . . . . Move file
SHIFT+F10. . . . . . . . . . . . . . . Opens context menu (same as right-click)
SHIFT+DELETE . . . . . . . . . . . Full wipe delete (bypasses Recycle Bin)
ALT+underlined letter . . . . Opens the corresponding menu
PC Keyboard Shortcuts
Document Cursor Controls
HOME . . . . . . . . . . . . . . to beginning of line or far left of field or screen
END . . . . . . . . . . . . . . . . to end of line, or far right of field or screen
CTRL+HOME . . . . . . . . to the top
CTRL+END . . . . . . . . . . to the bottom
PAGE UP . . . . . . . . . . . . moves document or dialog box up one page
PAGE DOWN . . . . . . . . moves document or dialog down one page
ARROW KEYS . . . . . . . move focus in documents, dialogs, etc.
CTRL+ > . . . . . . . . . . . . next word
CTRL+SHIFT+ > . . . . . . selects word
Windows Explorer Tree Control
Numeric Keypad * . . . Expand all under current selection
Numeric Keypad + . . . Expands current selection
Numeric Keypad – . . . Collapses current selection
¦ . . . . . . . . . . . . . . . . . . . Expand current selection or go to first child
‰ . . . . . . . . . . . . . . . . . . Collapse current selection or go to parent
Special Characters
‘ Opening single quote . . . alt 0145
’ Closing single quote . . . . alt 0146
“ Opening double quote . . . alt 0147
“ Closing double quote. . . . alt 0148
– En dash. . . . . . . . . . . . . . . alt 0150
— Em dash . . . . . . . . . . . . . . alt 0151
… Ellipsis. . . . . . . . . . . . . . . . alt 0133
• Bullet . . . . . . . . . . . . . . . . alt 0149
• ®️ Registration Mark . . . . . . . alt 0174
• ©️ Copyright . . . . . . . . . . . . . alt 0169
• ™️ Trademark . . . . . . . . . . . . alt 0153
• ° Degree symbol. . . . . . . . . alt 0176
• ¢ Cent sign . . . . . . . . . . . . . alt 0162
• 1⁄4 . . . . . . . . . . . . . . . . . . . . . alt 0188
• 1⁄2 . . . . . . . . . . . . . . . . . . . . . alt 0189
• 3⁄4 . . . . . . . . . . . . . . . . . . . . . alt 0190

English
Mark B. retweetledi
Mark B. retweetledi
Mark B. retweetledi
Mark B. retweetledi
Mark B. retweetledi
Mark B. retweetledi

Mark B. retweetledi
Mark B. retweetledi
Mark B. retweetledi
Mark B. retweetledi
Mark B. retweetledi

Your brain needs this, take a moment and enjoy.
x.com/fluxfolio_/sta…
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Mark B. retweetledi

The Artemis II launch like you’ve never seen it before Captured in breathtaking near-infrared and silky slow motion, this footage peels back the layers of the SLS rocket’s raw fury — revealing every swirling plume of fire, every shock diamond, and the sheer, elegant violence of liftoff in stunning, almost alien detail.The power of 8.8 million pounds of thrust has never looked this hypnotic. Courtesy: NASA / MARS ScientificAlternative versions (pick your vibe):Version 2 (more cinematic):
Witness the Artemis II launch as you’ve never experienced it — transformed into pure visual poetry. Shot in near-infrared and extreme slow motion, every explosive detail of the Space Launch System’s departure from Earth comes alive with breathtaking clarity and otherworldly beauty. NASA / MARS ScientificVersion 3 (short & punchy for social):
Artemis II liftoff, reimagined.
Near-infrared + slow motion = pure rocket ASMR on steroids.
The flames hit different in this spectrum Courtesy: NASA / MARS
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Mark B. retweetledi









