Regarding the invention of trains and Electricity, Veerabrahmendra Swami forecasted in his "Kaalagnaana" as :
Trains
1. "ఇనుప కమ్ముల ఫై పొగ బండ్లు నడిచేను"
( Smoke Vehicles will ride on iron bars)
We all know that these iron bars are the railway tracks which we see and the smoke vehicles are trains.
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Electricty Generation
2. "నీటి ఆవిరి తోటి దీపాలు వెలిగేను"
(Lights will glow with the vapour of water)
Today we know that technology of generating electricity from water. A lot of Hydro electric projects are being done and most of the power we get nowadays is through hydro power.