Sierra bootable USB


Upgrading Macs to the latest version is quite easy.

Today we will show you how create a bootable Mac OS Sierra USB.

This method can is very useful if you have to upgrade many Macs.

Use a USB drive that does not have any important information as this process will erase the data.

All you need to do is run this command with replaced by the target drive.

Be careful while running this command and see that you have selected the right volume or USB device.

This process can not be undone.

sudo /Applications/Install\ macOS\ --volume /Volumes/recovery_drive --applicationpath /Applications/Install\ macOS\
Ready to start. To continue we need to erase the disk at /Volumes/recovery_drive. If you wish to continue type (Y) then press return: Y Erasing Disk: 0%… 10%… 20%… 30%…100%… Copying installer files to disk… Copy complete. Making disk bootable… Copying boot files… Copy complete. Done.

Reboot with Option / Alt key held down and choose the USB drive.

Blender (Animation) keyboard shortcuts


Animating is a very time-consuming process and one of the longest tasks in some pipeline of production. To speed up the artist Blender offers keyboard shortcuts that can save you small amounts of time, in doing things like playback, frame rate or even view frame by frame.


A – toggle frame skipping.
P toggle ping-pong.
↵ Enter start playback (when paused).
Numpad 0 toggle looping.
Numpad . manual frame stepping.

Playback speed

1 NumPad 60 fps
2 NumPad 50 fps
3 NumPad 30 fps
4 NumPad 25fps
⇧ Shift +4 NumPad 24 fps
5 NumPad 20 fps
6 NumPad 15 fps
7 NumPad 12 fps
8 NumPad  10 fps
9 NumPad 6 fps
/ NumPad 5 fps

- slow down playback.

+ speed up playback

Frame by Frame

step back one frame.
step forward one frame.
step back 10 frames.
step forward 10 frames.

Shift+↓ use backward playback.
Shift+↑ use forward playback.
Shift hold to show frame numbers.
LMB scrub in time.
Ctrl++ zoom in
Ctrl + - zoom out
Esc quit

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