iMovie Transition Glitch

iMovie “Corrupted” Frames between two video clips

iMovie is a great free movie editor for Mac. However, an annoying bug is that when two video clips are put together, there can often be “corrupted” frames, glitch, or even choppy video between the two clips.

Simple solution to iMovie Transition Glitch

There are some complicated solutions online, such as re-importing the video clips in certain formats.

However, a simple solution that I tried and tested to work in most cases is to try trimming off a few seconds from the start of the affected video clip. Or even adding a transition effect where the problem arises may work.

To explain more precisely, suppose the problem arises in between A -> B, where A and B are video clips. Then, you can try trimming off a few seconds off the start of video clip B, or adding a transition effect between A and B. (If there is already a transition from A -> B, try removing it!)

Another solution to iMovie Transition Bug

Another solution that I tried and works in some cases, is to export the movie via File -> Share in Best (ProRes) Quality, with Better Quality Compress.

Best (ProRes) Quality and Better Quality Compression may solve your iMovie glitching bugs.

Other solutions to iMovie Bugs between Video transitions

If you have other solutions that you have seen or tried out, please share it in the comments below!

How to free up space on Gmail

4 Steps to clear space in Gmail

Although Gmail has 15 GB of space, it can run out of space quite fast, especially nowadays many emails contain attachments that can be quite large.

To free up space on Gmail, I usually do the following 4 steps:

1) Search “size:100k older:2018” on Gmail

The above searches for files 100 kilobytes or larger, dated 2018 or earlier.

You can modify your search accordingly, for example “size:1M older:2017” searches for files larger than 1 megabyte, older than 2017.

2) Search “from:facebook.com”

The above searches for all email sent from email address ending with “facebook.com”. This can be quite effective, since many small emails typically end up being larger than 1 single big email.

You can modify your search accordingly, for example “from:twitter.com”, etc.

3) Delete unwanted emails (found using methods above), and clear Trash

Clearing trash is important (otherwise the deleted files will still take up space). Messages that have been in Trash more than 30 days will be automatically deleted though.

Double check before you delete, since once deleted it is not possible to recover the emails.

4) Refresh your browser, and see that you have more space!

Typically, by using the above steps, I can delete up to 1o0 MB of email.

 

Canon PIXMA G5020 (G5070) Review

Canon Most Ink Efficient Printer

Just bought this printer (Canon PIXMA G5020, which is listed in Singapore as Canon PIXMA G5070). It is ideal for home use for students and working professionals.

Its advantages include:

  • Very efficient “ink tank” system. The ink refill system is by bottles of pure ink liquid instead of cartridges.
  • Design for high volume printing at low running cost
  • Compact size and dimensions (Approx. 403 x 369 x 166 mm for factory configuration,  Approx. 403 x 695 x 356 mm when Output/ADF trays extended)
  • Dual paper loading (you can load paper on the rear tray as well as the front tray). If you retract the rear tray, the printer becomes even more compact (just 16.6cm tall).
  • High speed (for inkjet): ISO standard print speed (A4): up to 13.0ipm black / 6.8 ipm colour
  • Supports wireless connection to computer as well as smart phone.
  • Automatic Duplex


Canon PIXMA G5020 Wireless MegaTank Single Function SuperTank Printer | Mobile & Auto 2-Sided Printing

Overall, this is the ideal printer for work from home, as well as homeschool purposes. It is even more ideal for those who don’t want additional features such as scanner and fax. By not having those features (which you may not need), it has a very economical affordable cost. Especially when you factor in the long term savings from cheap and long-lasting ink refills.

If you do want copier, fax and scanning features, then you can consider the Canon PIXMA G7020 instead, which is basically the Canon G5020 with the additional features.


Canon PIXMA G7020 Wireless All-in-One Supertank (Megatank) Printer, Copier, Scan, Fax and ADF with Mobile Printing, Black

AI can’t predict how a child’s life will turn out even with a ton of data

Despite the great hype of AI, there are still many limitations of what AI can do. Real life is too complicated for a machine to figure out, at least currently.

Source: MIT Tech Review

Hundreds of researchers attempted to predict children’s and families’ outcomes, using 15 years of data. None were able to do so with meaningful accuracy.

Now a new study published in the Proceedings of the National Academy of Sciences casts doubt on how effective this approach really is. Three sociologists at Princeton University asked hundreds of researchers to predict six life outcomes for children, parents, and households using nearly 13,000 data points on over 4,000 families. None of the researchers got even close to a reasonable level of accuracy, regardless of whether they used simple statistics or cutting-edge machine learning.

“The study really highlights this idea that at the end of the day, machine-learning tools are not magic,” says Alice Xiang, the head of fairness and accountability research at the nonprofit Partnership on AI.

Install Windows on MacBook (Fast and Easy method)

Basically, you just need to follow the instructions in the YouTube video below. It is very easy and fast. The key software is VirtualBox.

You can download the official Windows 10 ISO disc image here: https://www.microsoft.com/en-gb/software-download/windows10ISO

Note that Windows 10 (Home) is free (you don’t have to activate it) and you can use it with only very minor restrictions.

Overall, the process to install Windows 10 on a Mac (using VirtualBox) is much easier than I expected.

Total time taken: Around 30-40 minutes (possibly faster if your download speed and RAM is fast)

Total cost: $0

Total space needed: Around 10-20 GB is needed initially. VirtualBox allows “dynamically allocated disks” which are faster to create and can grow to larger sizes. For example, if you set 50GB as your disk space (but only use 10 GB) then it will only occupy 10 GB on your Mac.

How to keep Python / R Running on Mac (without screen lock or sleep)

When the Mac (or MacBook) is running for a long time, it is very liable to do one of the following things:

  • sleep
  • screen saver
  • lock screen

The problem is that your Python program or R program running in the background will most likely stop completely. Sure, it can resume when you activate the Mac again, but that is not what most people want! For one, it may impact the accurate calculation of elapsed time of your Python code.

Changing settings via System Preferences -> Energy Saver is a possible solution, but it is troublesome and problematic:

  • Have to switch it on and off again when not in use (many steps).
  • Preventing sleep may still run into screen saver, screen lock, etc.
  • Vice versa, preventing screen lock may still run into Mac sleeping, etc.

The solution is to install this free App called Amphetamine. Despite its “drug” name, it is a totally legitimate program that has high reviews everywhere. What this app does is to prevent your Mac from stopping, locking or sleeping. Hence, whatever program you are running will not halt till the program is done (or when you switch off Amphetamine).

It is a great program that does its job well! Highly recommended for anyone doing programming, video editing or downloading large files on Mac.