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All questions asked by Mattias Johnson

List all solved & unsolved questions asked by Mattias Johnson

If $xi_mu$ is a Killing vector is it true that its contravariant representation $xi^mu$ also is a Killing vector?

2   Physics Asked on 06/13/2021

differential geometry  general relativity  symmetry  vector fields 

Can white gesso be diluted to make it translucent?

1   Arts & Crafts Asked on 08/25/2021

acrylic paint 

How to tell a story through pencil drawings?

2   Arts & Crafts Asked on 08/25/2021

drawing 

What's the name of this cartoon style?

1   Arts & Crafts Asked on 08/25/2021

illustration  style identification 

Why are parallel lines in the real world not drawn parallel as they head to the vanishing point?

1   Arts & Crafts Asked on 08/25/2021

drawing  linear perspective 

Economical ideas for lettered t-shirts

4   Arts & Crafts Asked on 08/25/2021

material selection  tool selection 

Am I going about learning to draw the wrong way?

5   Arts & Crafts Asked on 08/25/2021

drawing 

Drawing a newborn baby

1   Arts & Crafts Asked on 08/25/2021

colored pencils  drawing  paper  pencils  portrait drawing 

What papers are suitable for markers?

5   Arts & Crafts Asked on 08/25/2021

drawing  markers  paper 

How to ferment green indigo powder to make it blue

1   Arts & Crafts Asked on 08/25/2021

pigments  soap making 

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