Category: Frontpage

Mars Mission Decoded To A Four Year Old

Vasvi declared that she wanted to go to Mars, and I had to decode a lot of things for her to explain the differences between San Francisco and where she wants to go. The best way to overcome challenges is to face them and start thinking about how this generation needs to prepare.

Feature Simple Speak
Gravity (3.71 m/s2) You’ll walk as if you’re light-hopping, you’ll weigh only 1/3rd; Jumping from a rock will feel slow motion (you’ll take about thrice as more time to fall)
Diameter (6794 km) Will take half the time to get around Mars, map scales will be larger
Sun’s luminosity (40%) Brightest days will look like very early mornings
Atmospheric Pressure (600 Pa) Water will boil at about 0 degrees C, right where it freezes here on Earth (see this table)
Temperature (-60C) Really cold as compared to most of earth
Two Moons As fascinating as this sounds, these are really very small rocks around Mars, as compared to our moon and have minimal effect on Mars. In reality, you can’t see a large moon on Mars (its pretty empty).
Orbital Period (687 Days) Summers will last about 6 months, and every other season will be longer than here. Calendars will have longer months and longer years there.
Life (unknown) There are no trees, no bees, no butterflies, no birds and no flowers. Its pretty empty from a living creature perspective.

To a child’s mind, the differences are not as extraordinary as it is to adults. They are still linking to what is supposedly normal.

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Flying From Twitter

Twitter Journey
Twitter Journey

This last Friday, after just over two years at Twitter, I decided to drive down the street to Uber.

The most difficult part of this decision was the fact that I only spent, what seems like an extremely short time at Twitter. The experience was amazing – the methodologies, the technologies and above all, the wonderful people I’ve had the honor to work with.

Will truly miss the relationships I’m leaving behind, especially my immediate team (Aras, DRob, DavidJ, Jeff, Joe, Mike, Toby and Zeke). And then, there’s Ian – who has become a very close friend in this very short time.

Really looking forward to the next adventure.

Sanity

About 20 or so years ago, I had the privilege of having a guest at our place. Amazingly enough, we would almost always have dinner on the dinner table, unlike how I’m used to with my kids (on the couch, bed, standing and sometimes, on the table meant for this exclusive function).

This guest was from a part of India, now known for its exceedingly high PM2.5 (particulate matter). The air pollution itself is responsible for lung and neural diseases. Add to that the fact that you have sewage seepage into drinking water pipes and we’re talking serious long term damage to the brain and lungs.

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Beaming Out of Yahoo

After 7+ years, I am leaving Yahoo. Going to join “the flock” at Twitter.

This is big and then, not so big for me. My role and responsibility remains somewhat unchanged as I go from Yahoo to Twitter, but I’m moving to San Francisco (the movers finished that yesterday). So, living in the city will be new. I’ve not taken very kindly to the traffic there so far, but this will change I’m sure.

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Me Cook Food

When hunger strikes, you have to finally get cooking. For the first time ever, I served food out for myself like a civilized being (instead of devouring from the pots and pans).

On the table

  • Arhar Dal (Lentil)
  • Matar Pulao (Basmati Rice with Peas)
  • Aloo Pyaz ki Sabzi (Potatoes and Onions)
  • Sliced Tomato Salad

Took about 35 minutes to do this.

Phuton

Got a disassembled futon at my place – and it’s assembly was quite a project. Took me about two hours to get it together. Photus phollow (wife took camera away to click our daughter, so the trail is a little incomplete).

initial mess
initial mess
arm frames
nuts and bolts
nuts and bolts
futon pad
futon pad
left frame and transmission
left frame and transmission
plan on board
plan on board
frames attached to stretchers (progress 1 hr later)
frames attached to stretchers (progress 1 hr later)
transmission attached (another ½ hr later)
transmission attached (another ½ hr later)
attaching the seat/back frames and rolling out the pad - final outcome
attaching the seat/back frames and rolling out the pad – final outcome

Red Moon During Lunar Eclipse

This Moon (Lunar Eclipse)is a photograph (credits to Hemant Hariyani) taken during a lunar eclipse. Besides being a very beautiful sight, there’s a curious orange tinge on the lower left quadrant of the moon. My curiosity lead to the moonzoo (please search for the terms “blood red” on that page to see their reason) – which explains very briefly the cause of this. While discussing on a list, I realized that it’s confusing sometimes to visualize how exactly this happens – so I drew a diagram to get this straightened out.

Reason for the moon's blood red (orange) color during lunar eclipseRefraction causes light to bend – and when different colors of white light bend at different angles, that causes light to split up; the very cause of rainbows. This is enough theory, the rest is self explanatory in the diagram beside this text. As you can figure out, light from the sun, reflected refracted when passing through earth’s atmosphere – falls on the moon (and since only longer λ [red] reach out) it looks orange (or blood red).

It’s imperative to note, that the cause of this blood red color is very different from the cause of the blood red color we see when the moon rises on certain nights. That blood red is caused because the light coming from the moon gets scattered when passing through the earth’s atmosphere (more so, polluted atmosphere), which causes the red waves to fall on our eyes and make the moon look red. That is when the light from the sun gets reflected back on earth and on it’s way to our eyes, we see red (the whole thing looks red – unlike this phenomenon).