Text: let us set the scene and put her work in context.

Correct capitalization: Let us set the scene and put her work in context.

Text: with financial assistance from the leading german manufacturers of aircraft, he began an intense programme of studying the resistance of fluids, turbulence and lift, all leading to better aircraft design :

Correct capitalization: With financial assistance from the leading German manufacturers of aircraft, he began an intense programme of studying the resistance of fluids, turbulence and lift, all leading to better aircraft design :

Text: it is ideal for applications such as energy and battery storage, power distribution, alternative energy systems, test equipment and both military and commercial electric vehicles.

Correct capitalization: It is ideal for applications such as energy and battery storage, power distribution, alternative energy systems, test equipment and both military and commercial electric vehicles.

Text: how i became moved by my kids, and then moved them to italy!

Correct capitalization:
How I became moved by my kids, and then moved them to Italy!