/u/walrus0's posts in /r/askscience

Year:

Only show posts with narrations

AskScience AMA series - IAMA person that regularly works with photovoltaic solar power systems for off-grid telecom applications.

128 upvotes

Mark as read: Add to a list

How much delta-V would be required to boost the ISS into an orbit high enough that it would not require periodic re-boosts?

7 upvotes

Mark as read: Add to a list

Meteorology: How long of a "dwell time" would the Google Loon ballons have over New Zealand at the current wind speeds at 20km altitude?

6 upvotes

Mark as read: Add to a list

How close are we to the commercial market availability of liquid metal batteries?

5 upvotes

Mark as read: Add to a list

How much of the payload mass on a typical Progress resupply mission is water and food?

2 upvotes

Mark as read: Add to a list

If the Mars Science Laboratory (Curiosity) which launches today has a 150W RTG on it, why not also cover the blank upper sections in triple-junction GaAs solar cells?

2 upvotes

Mark as read: Add to a list

Can someone give me a summary of the watt-hour/kilogram ratio of AGM deep cycle lead acid batteries, and average lithium polymer batteries?

2 upvotes

Mark as read: Add to a list

When will both of the southern sections of the Aral Sea disappear entirely?

2 upvotes

Mark as read: Add to a list

How close to commercial availability is liquid metal battery technology?

1 upvotes

Mark as read: Add to a list

If anyone is curious about the current state of photovoltaics, off-grid solar or the practical applications of solar power for telecom in the third world, I can answer questions about that...

1 upvotes

Mark as read: Add to a list

Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
AskScience AMA series - IAMA person that regularly works with photovoltaic solar power systems for off-grid telecom applications.	128
How much delta-V would be required to boost the ISS into an orbit high enough that it would not require periodic re-boosts?	7
Meteorology: How long of a "dwell time" would the Google Loon ballons have over New Zealand at the current wind speeds at 20km altitude?	6
How close are we to the commercial market availability of liquid metal batteries?	5
How much of the payload mass on a typical Progress resupply mission is water and food?	2
If the Mars Science Laboratory (Curiosity) which launches today has a 150W RTG on it, why not also cover the blank upper sections in triple-junction GaAs solar cells?	2
Can someone give me a summary of the watt-hour/kilogram ratio of AGM deep cycle lead acid batteries, and average lithium polymer batteries?	2
When will both of the southern sections of the Aral Sea disappear entirely?	2
How close to commercial availability is liquid metal battery technology?	1
If anyone is curious about the current state of photovoltaics, off-grid solar or the practical applications of solar power for telecom in the third world, I can answer questions about that...	1